chore: Update discovery artifacts (#1392)

## Discovery Artifact Change Summary:
feat(androidmanagement): update the api https://github.com/googleapis/google-api-python-client/commit/877990251a43acbc447a1f2f963beb3bbfc6352f
feat(content): update the api https://github.com/googleapis/google-api-python-client/commit/eaf742d4e933744abc72c1808f1e5a16dccaa1d4
diff --git a/docs/dyn/sqladmin_v1beta4.instances.html b/docs/dyn/sqladmin_v1beta4.instances.html
index b5d424b..6f2bbf8 100644
--- a/docs/dyn/sqladmin_v1beta4.instances.html
+++ b/docs/dyn/sqladmin_v1beta4.instances.html
@@ -844,7 +844,7 @@
     "selfLink": "A String", # The URI of this resource.
     "sha1Fingerprint": "A String", # Sha1 Fingerprint.
   },
-  "serviceAccountEmailAddress": "A String", # The service account email address assigned to the instance. This property is read-only.
+  "serviceAccountEmailAddress": "A String", # The service account email address assigned to the instance. This property is applicable only to Second Generation instances.
   "settings": { # Database instance settings. # The user settings.
     "activationPolicy": "A String", # The activation policy specifies when the instance is activated; it is applicable only when the instance state is RUNNABLE. Valid values: *ALWAYS*: The instance is on, and remains so even in the absence of connection requests. *NEVER*: The instance is off; it is not activated, even if a connection request arrives.
     "activeDirectoryConfig": { # Active Directory configuration, relevant only for Cloud SQL for SQL Server. # Active Directory configuration, relevant only for Cloud SQL for SQL Server.
@@ -889,7 +889,6 @@
     ],
     "insightsConfig": { # Insights configuration. This specifies when Cloud SQL Insights feature is enabled and optional configuration. # Insights configuration, for now relevant only for Postgres.
       "queryInsightsEnabled": True or False, # Whether Query Insights feature is enabled.
-      "queryPlansPerMinute": 42, # Number of query plans generated by Insights per minute. Default is 5. Changing this will restart the database.
       "queryStringLength": 42, # Maximum query length stored in bytes. Default value: 1024 bytes. Range: 256-4500 bytes. Query length more than this field value will be truncated to this value. When unset, query length will be the default value. Changing query length will restart the database.
       "recordApplicationTags": True or False, # Whether Query Insights will record application tags from query when enabled.
       "recordClientAddress": True or False, # Whether Query Insights will record client address when enabled.
@@ -1146,7 +1145,7 @@
     "selfLink": "A String", # The URI of this resource.
     "sha1Fingerprint": "A String", # Sha1 Fingerprint.
   },
-  "serviceAccountEmailAddress": "A String", # The service account email address assigned to the instance. This property is read-only.
+  "serviceAccountEmailAddress": "A String", # The service account email address assigned to the instance. This property is applicable only to Second Generation instances.
   "settings": { # Database instance settings. # The user settings.
     "activationPolicy": "A String", # The activation policy specifies when the instance is activated; it is applicable only when the instance state is RUNNABLE. Valid values: *ALWAYS*: The instance is on, and remains so even in the absence of connection requests. *NEVER*: The instance is off; it is not activated, even if a connection request arrives.
     "activeDirectoryConfig": { # Active Directory configuration, relevant only for Cloud SQL for SQL Server. # Active Directory configuration, relevant only for Cloud SQL for SQL Server.
@@ -1191,7 +1190,6 @@
     ],
     "insightsConfig": { # Insights configuration. This specifies when Cloud SQL Insights feature is enabled and optional configuration. # Insights configuration, for now relevant only for Postgres.
       "queryInsightsEnabled": True or False, # Whether Query Insights feature is enabled.
-      "queryPlansPerMinute": 42, # Number of query plans generated by Insights per minute. Default is 5. Changing this will restart the database.
       "queryStringLength": 42, # Maximum query length stored in bytes. Default value: 1024 bytes. Range: 256-4500 bytes. Query length more than this field value will be truncated to this value. When unset, query length will be the default value. Changing query length will restart the database.
       "recordApplicationTags": True or False, # Whether Query Insights will record application tags from query when enabled.
       "recordClientAddress": True or False, # Whether Query Insights will record client address when enabled.
@@ -1424,7 +1422,7 @@
         "selfLink": "A String", # The URI of this resource.
         "sha1Fingerprint": "A String", # Sha1 Fingerprint.
       },
-      "serviceAccountEmailAddress": "A String", # The service account email address assigned to the instance. This property is read-only.
+      "serviceAccountEmailAddress": "A String", # The service account email address assigned to the instance. This property is applicable only to Second Generation instances.
       "settings": { # Database instance settings. # The user settings.
         "activationPolicy": "A String", # The activation policy specifies when the instance is activated; it is applicable only when the instance state is RUNNABLE. Valid values: *ALWAYS*: The instance is on, and remains so even in the absence of connection requests. *NEVER*: The instance is off; it is not activated, even if a connection request arrives.
         "activeDirectoryConfig": { # Active Directory configuration, relevant only for Cloud SQL for SQL Server. # Active Directory configuration, relevant only for Cloud SQL for SQL Server.
@@ -1469,7 +1467,6 @@
         ],
         "insightsConfig": { # Insights configuration. This specifies when Cloud SQL Insights feature is enabled and optional configuration. # Insights configuration, for now relevant only for Postgres.
           "queryInsightsEnabled": True or False, # Whether Query Insights feature is enabled.
-          "queryPlansPerMinute": 42, # Number of query plans generated by Insights per minute. Default is 5. Changing this will restart the database.
           "queryStringLength": 42, # Maximum query length stored in bytes. Default value: 1024 bytes. Range: 256-4500 bytes. Query length more than this field value will be truncated to this value. When unset, query length will be the default value. Changing query length will restart the database.
           "recordApplicationTags": True or False, # Whether Query Insights will record application tags from query when enabled.
           "recordClientAddress": True or False, # Whether Query Insights will record client address when enabled.
@@ -1674,7 +1671,7 @@
     "selfLink": "A String", # The URI of this resource.
     "sha1Fingerprint": "A String", # Sha1 Fingerprint.
   },
-  "serviceAccountEmailAddress": "A String", # The service account email address assigned to the instance. This property is read-only.
+  "serviceAccountEmailAddress": "A String", # The service account email address assigned to the instance. This property is applicable only to Second Generation instances.
   "settings": { # Database instance settings. # The user settings.
     "activationPolicy": "A String", # The activation policy specifies when the instance is activated; it is applicable only when the instance state is RUNNABLE. Valid values: *ALWAYS*: The instance is on, and remains so even in the absence of connection requests. *NEVER*: The instance is off; it is not activated, even if a connection request arrives.
     "activeDirectoryConfig": { # Active Directory configuration, relevant only for Cloud SQL for SQL Server. # Active Directory configuration, relevant only for Cloud SQL for SQL Server.
@@ -1719,7 +1716,6 @@
     ],
     "insightsConfig": { # Insights configuration. This specifies when Cloud SQL Insights feature is enabled and optional configuration. # Insights configuration, for now relevant only for Postgres.
       "queryInsightsEnabled": True or False, # Whether Query Insights feature is enabled.
-      "queryPlansPerMinute": 42, # Number of query plans generated by Insights per minute. Default is 5. Changing this will restart the database.
       "queryStringLength": 42, # Maximum query length stored in bytes. Default value: 1024 bytes. Range: 256-4500 bytes. Query length more than this field value will be truncated to this value. When unset, query length will be the default value. Changing query length will restart the database.
       "recordApplicationTags": True or False, # Whether Query Insights will record application tags from query when enabled.
       "recordClientAddress": True or False, # Whether Query Insights will record client address when enabled.
@@ -2663,7 +2659,7 @@
     "selfLink": "A String", # The URI of this resource.
     "sha1Fingerprint": "A String", # Sha1 Fingerprint.
   },
-  "serviceAccountEmailAddress": "A String", # The service account email address assigned to the instance. This property is read-only.
+  "serviceAccountEmailAddress": "A String", # The service account email address assigned to the instance. This property is applicable only to Second Generation instances.
   "settings": { # Database instance settings. # The user settings.
     "activationPolicy": "A String", # The activation policy specifies when the instance is activated; it is applicable only when the instance state is RUNNABLE. Valid values: *ALWAYS*: The instance is on, and remains so even in the absence of connection requests. *NEVER*: The instance is off; it is not activated, even if a connection request arrives.
     "activeDirectoryConfig": { # Active Directory configuration, relevant only for Cloud SQL for SQL Server. # Active Directory configuration, relevant only for Cloud SQL for SQL Server.
@@ -2708,7 +2704,6 @@
     ],
     "insightsConfig": { # Insights configuration. This specifies when Cloud SQL Insights feature is enabled and optional configuration. # Insights configuration, for now relevant only for Postgres.
       "queryInsightsEnabled": True or False, # Whether Query Insights feature is enabled.
-      "queryPlansPerMinute": 42, # Number of query plans generated by Insights per minute. Default is 5. Changing this will restart the database.
       "queryStringLength": 42, # Maximum query length stored in bytes. Default value: 1024 bytes. Range: 256-4500 bytes. Query length more than this field value will be truncated to this value. When unset, query length will be the default value. Changing query length will restart the database.
       "recordApplicationTags": True or False, # Whether Query Insights will record application tags from query when enabled.
       "recordClientAddress": True or False, # Whether Query Insights will record client address when enabled.