chore: Update discovery artifacts (#1562)

## Deleted keys were detected in the following stable discovery artifacts:
androidpublisher v3 https://github.com/googleapis/google-api-python-client/commit/594b20bfc7b724ab1b19b3a8f1df9783f82b25c7
appengine v1 https://github.com/googleapis/google-api-python-client/commit/59606ed1d543608549a574ac1229d20c970399de
retail v2 https://github.com/googleapis/google-api-python-client/commit/8d4f2af1eb762bb626f94bde61614e482477c83a

## Deleted keys were detected in the following pre-stable discovery artifacts:
appengine v1alpha https://github.com/googleapis/google-api-python-client/commit/59606ed1d543608549a574ac1229d20c970399de
appengine v1beta https://github.com/googleapis/google-api-python-client/commit/59606ed1d543608549a574ac1229d20c970399de
dns v1beta2 https://github.com/googleapis/google-api-python-client/commit/3e8173dcdf327abec4f7927cad565a4fdca7382d
retail v2alpha https://github.com/googleapis/google-api-python-client/commit/8d4f2af1eb762bb626f94bde61614e482477c83a
retail v2beta https://github.com/googleapis/google-api-python-client/commit/8d4f2af1eb762bb626f94bde61614e482477c83a

## Discovery Artifact Change Summary:
feat(analyticsadmin): update the api https://github.com/googleapis/google-api-python-client/commit/be347fe46fbee592c9a97d405655ef9a121b1d15
feat(androidpublisher): update the api https://github.com/googleapis/google-api-python-client/commit/594b20bfc7b724ab1b19b3a8f1df9783f82b25c7
feat(appengine): update the api https://github.com/googleapis/google-api-python-client/commit/59606ed1d543608549a574ac1229d20c970399de
feat(area120tables): update the api https://github.com/googleapis/google-api-python-client/commit/f35db63f3e1146ee870334abfd317f168f098600
feat(chromepolicy): update the api https://github.com/googleapis/google-api-python-client/commit/ecaafc4d06c170ac5e1cab7127884a4ea0f17a4c
feat(cloudbuild): update the api https://github.com/googleapis/google-api-python-client/commit/7f6e2e7afba57f065155dc329fd6b7fc1c57c897
feat(cloudsearch): update the api https://github.com/googleapis/google-api-python-client/commit/b6310c5ea4221a69c71558b8911f817a99987b18
feat(container): update the api https://github.com/googleapis/google-api-python-client/commit/01aebc9962e09b7605975e2eee967ac9362bca24
feat(content): update the api https://github.com/googleapis/google-api-python-client/commit/47a79355df5a7e4a87cbaec761c3246abb121fe0
feat(dialogflow): update the api https://github.com/googleapis/google-api-python-client/commit/14e2dce00734d9b58456787bf14752e4b83d2381
feat(dns): update the api https://github.com/googleapis/google-api-python-client/commit/3e8173dcdf327abec4f7927cad565a4fdca7382d
feat(documentai): update the api https://github.com/googleapis/google-api-python-client/commit/fa101412c120778403c48795988e884a9d70f5ea
feat(domains): update the api https://github.com/googleapis/google-api-python-client/commit/9217f6280301716c31544762964c61dbae6deb9d
feat(iap): update the api https://github.com/googleapis/google-api-python-client/commit/178edbddc9ff2b40086d3e1dc1d30757986bca80
feat(managedidentities): update the api https://github.com/googleapis/google-api-python-client/commit/6c7bd384ce9e2e8504a5d97119fbd5bc1527f879
feat(osconfig): update the api https://github.com/googleapis/google-api-python-client/commit/89f87e5122b240ae364ece7ff5a70aa4da3c5d76
feat(redis): update the api https://github.com/googleapis/google-api-python-client/commit/5e0bac188a099153b52d63500667efc3790d8f9a
feat(retail): update the api https://github.com/googleapis/google-api-python-client/commit/8d4f2af1eb762bb626f94bde61614e482477c83a
feat(servicenetworking): update the api https://github.com/googleapis/google-api-python-client/commit/b74f86c26805582014e9c462a8a6a02321612a62
feat(speech): update the api https://github.com/googleapis/google-api-python-client/commit/1fe9ba81f62cf517597e12c86a6c0ba7613da7c2
feat(sqladmin): update the api https://github.com/googleapis/google-api-python-client/commit/1e3c477f32ceee89c347f322d2e5e54eb9cbebef
diff --git a/docs/dyn/sqladmin_v1.projects.instances.html b/docs/dyn/sqladmin_v1.projects.instances.html
index 84ebfab..1939e61 100644
--- a/docs/dyn/sqladmin_v1.projects.instances.html
+++ b/docs/dyn/sqladmin_v1.projects.instances.html
@@ -342,15 +342,15 @@
   "errors": [ # List of migration violations.
     { # External primary instance migration setting error/warning.
       "detail": "A String", # Additional information about the error encountered.
-      "kind": "A String", # Can be *sql#externalSyncSettingError* or *sql#externalSyncSettingWarning*.
+      "kind": "A String", # Can be **sql#externalSyncSettingError** or **sql#externalSyncSettingWarning**.
       "type": "A String", # Identifies the specific error that occurred.
     },
   ],
-  "kind": "A String", # This is always *sql#migrationSettingErrorList*.
+  "kind": "A String", # This is always **sql#migrationSettingErrorList**.
   "warnings": [ # List of migration warnings.
     { # External primary instance migration setting error/warning.
       "detail": "A String", # Additional information about the error encountered.
-      "kind": "A String", # Can be *sql#externalSyncSettingError* or *sql#externalSyncSettingWarning*.
+      "kind": "A String", # Can be **sql#externalSyncSettingError** or **sql#externalSyncSettingWarning**.
       "type": "A String", # Identifies the specific error that occurred.
     },
   ],