chore: Update discovery artifacts (#1375)

## Deleted keys were detected in the following stable discovery artifacts:
servicenetworking v1 https://github.com/googleapis/google-api-python-client/commit/c0ad756013c602597e477bc0e22e7b2771689214

## Deleted keys were detected in the following pre-stable discovery artifacts:
retail v2alpha https://github.com/googleapis/google-api-python-client/commit/c9d7a149295d827110c789e464b4f97edc13cbaa
servicenetworking v1beta https://github.com/googleapis/google-api-python-client/commit/c0ad756013c602597e477bc0e22e7b2771689214

## Discovery Artifact Change Summary:
feat(composer): update the api https://github.com/googleapis/google-api-python-client/commit/c2cb2746320fa7b6c1536028794f53576c0f1ddd
feat(compute): update the api https://github.com/googleapis/google-api-python-client/commit/2cdcd0a21223a229e711778a3cf1b38c63521d96
feat(dfareporting): update the api https://github.com/googleapis/google-api-python-client/commit/73f7d790e1585322547fe7cb39c8f36e7b400121
feat(dialogflow): update the api https://github.com/googleapis/google-api-python-client/commit/8edd852f294eaccfa6a0e7288d54a2d751f53506
feat(retail): update the api https://github.com/googleapis/google-api-python-client/commit/c9d7a149295d827110c789e464b4f97edc13cbaa
feat(sasportal): update the api https://github.com/googleapis/google-api-python-client/commit/12683cabbf8deaf0a884147b98c30345786874a6
feat(servicenetworking): update the api https://github.com/googleapis/google-api-python-client/commit/c0ad756013c602597e477bc0e22e7b2771689214
diff --git a/docs/dyn/compute_alpha.machineImages.html b/docs/dyn/compute_alpha.machineImages.html
index df8d76d..49c5972 100644
--- a/docs/dyn/compute_alpha.machineImages.html
+++ b/docs/dyn/compute_alpha.machineImages.html
@@ -381,7 +381,8 @@
             # This field can be both set at instance creation and update network interface operations.
         "subinterfaces": [ # SubInterfaces help enable L2 communication for the instance over subnetworks that support L2. Every network interface will get a default untagged (vlan not specified) subinterface. Users can specify additional tagged subinterfaces which are sub-fields to the Network Interface.
           {
-            "ipAddress": "A String", # An IPv4 internal IP address to assign to the instance for this subinterface.
+            "ipAddress": "A String", # An IPv4 internal IP address to assign to the instance for this subinterface. If specified, ip_allocation_mode should be set to ALLOCATE_IP.
+            "ipAllocationMode": "A String",
             "subnetwork": "A String", # If specified, this subnetwork must belong to the same network as that of the network interface. If not specified the subnet of network interface will be used. If you specify this property, you can specify the subnetwork as a full or partial URL. For example, the following are all valid URLs:
                 # - https://www.googleapis.com/compute/v1/projects/project/regions/region/subnetworks/subnetwork
                 # - regions/region/subnetworks/subnetwork
@@ -399,6 +400,7 @@
           #
           # By default, this is set to true so an instance is automatically restarted if it is terminated by Compute Engine.
       "availabilityDomain": 42, # Specifies the availability domain (AD), which this instance should be scheduled on. The AD belongs to the spread GroupPlacementPolicy resource policy that has been assigned to the instance. Specify a value between 1-max count of availability domains in your GroupPlacementPolicy. See go/placement-policy-extension for more details.
+      "hostErrorTimeoutSeconds": 42, # Specify the time in seconds for host error detection, the value must be within the range of [90, 330] with the increment of 30, if unset, the default behavior of host error recovery will be used.
       "latencyTolerant": True or False, # Defines whether the instance is tolerant of higher cpu latency. This can only be set during instance creation, or when the instance is not currently running. It must not be set if the preemptible option is also set.
       "locationHint": "A String", # An opaque location hint used to place the instance close to other resources. This field is for use by internal tools that use the public API.
       "maintenanceFreezeDurationHours": 42, # Specifies the number of hours after VM instance creation where the VM won't be scheduled for maintenance.
@@ -831,7 +833,8 @@
             # This field can be both set at instance creation and update network interface operations.
         "subinterfaces": [ # SubInterfaces help enable L2 communication for the instance over subnetworks that support L2. Every network interface will get a default untagged (vlan not specified) subinterface. Users can specify additional tagged subinterfaces which are sub-fields to the Network Interface.
           {
-            "ipAddress": "A String", # An IPv4 internal IP address to assign to the instance for this subinterface.
+            "ipAddress": "A String", # An IPv4 internal IP address to assign to the instance for this subinterface. If specified, ip_allocation_mode should be set to ALLOCATE_IP.
+            "ipAllocationMode": "A String",
             "subnetwork": "A String", # If specified, this subnetwork must belong to the same network as that of the network interface. If not specified the subnet of network interface will be used. If you specify this property, you can specify the subnetwork as a full or partial URL. For example, the following are all valid URLs:
                 # - https://www.googleapis.com/compute/v1/projects/project/regions/region/subnetworks/subnetwork
                 # - regions/region/subnetworks/subnetwork
@@ -849,6 +852,7 @@
           #
           # By default, this is set to true so an instance is automatically restarted if it is terminated by Compute Engine.
       "availabilityDomain": 42, # Specifies the availability domain (AD), which this instance should be scheduled on. The AD belongs to the spread GroupPlacementPolicy resource policy that has been assigned to the instance. Specify a value between 1-max count of availability domains in your GroupPlacementPolicy. See go/placement-policy-extension for more details.
+      "hostErrorTimeoutSeconds": 42, # Specify the time in seconds for host error detection, the value must be within the range of [90, 330] with the increment of 30, if unset, the default behavior of host error recovery will be used.
       "latencyTolerant": True or False, # Defines whether the instance is tolerant of higher cpu latency. This can only be set during instance creation, or when the instance is not currently running. It must not be set if the preemptible option is also set.
       "locationHint": "A String", # An opaque location hint used to place the instance close to other resources. This field is for use by internal tools that use the public API.
       "maintenanceFreezeDurationHours": 42, # Specifies the number of hours after VM instance creation where the VM won't be scheduled for maintenance.
@@ -1175,7 +1179,8 @@
                 # This field can be both set at instance creation and update network interface operations.
             "subinterfaces": [ # SubInterfaces help enable L2 communication for the instance over subnetworks that support L2. Every network interface will get a default untagged (vlan not specified) subinterface. Users can specify additional tagged subinterfaces which are sub-fields to the Network Interface.
               {
-                "ipAddress": "A String", # An IPv4 internal IP address to assign to the instance for this subinterface.
+                "ipAddress": "A String", # An IPv4 internal IP address to assign to the instance for this subinterface. If specified, ip_allocation_mode should be set to ALLOCATE_IP.
+                "ipAllocationMode": "A String",
                 "subnetwork": "A String", # If specified, this subnetwork must belong to the same network as that of the network interface. If not specified the subnet of network interface will be used. If you specify this property, you can specify the subnetwork as a full or partial URL. For example, the following are all valid URLs:
                     # - https://www.googleapis.com/compute/v1/projects/project/regions/region/subnetworks/subnetwork
                     # - regions/region/subnetworks/subnetwork
@@ -1193,6 +1198,7 @@
               #
               # By default, this is set to true so an instance is automatically restarted if it is terminated by Compute Engine.
           "availabilityDomain": 42, # Specifies the availability domain (AD), which this instance should be scheduled on. The AD belongs to the spread GroupPlacementPolicy resource policy that has been assigned to the instance. Specify a value between 1-max count of availability domains in your GroupPlacementPolicy. See go/placement-policy-extension for more details.
+          "hostErrorTimeoutSeconds": 42, # Specify the time in seconds for host error detection, the value must be within the range of [90, 330] with the increment of 30, if unset, the default behavior of host error recovery will be used.
           "latencyTolerant": True or False, # Defines whether the instance is tolerant of higher cpu latency. This can only be set during instance creation, or when the instance is not currently running. It must not be set if the preemptible option is also set.
           "locationHint": "A String", # An opaque location hint used to place the instance close to other resources. This field is for use by internal tools that use the public API.
           "maintenanceFreezeDurationHours": 42, # Specifies the number of hours after VM instance creation where the VM won't be scheduled for maintenance.