chore: Update discovery artifacts (#1493)

## Deleted keys were detected in the following stable discovery artifacts:
documentai v1 https://github.com/googleapis/google-api-python-client/commit/3d6892c775b31d0ed6caead07666e423dccdba62
iam v1 https://github.com/googleapis/google-api-python-client/commit/98682633e8d244ca7bbf5b3726ed305e338a1cdd
osconfig v1 https://github.com/googleapis/google-api-python-client/commit/588812ffa314a68be1be61e229a187aecbe587e4

## Deleted keys were detected in the following pre-stable discovery artifacts:
compute alpha https://github.com/googleapis/google-api-python-client/commit/3740a88b497c25e6a5aee22f873c33117034f8fa
compute beta https://github.com/googleapis/google-api-python-client/commit/3740a88b497c25e6a5aee22f873c33117034f8fa
documentai v1beta3 https://github.com/googleapis/google-api-python-client/commit/3d6892c775b31d0ed6caead07666e423dccdba62
ideahub v1alpha https://github.com/googleapis/google-api-python-client/commit/942102dcc79691866f8febbb732e477d0e5227b4

## Discovery Artifact Change Summary:
feat(analyticsadmin): update the api https://github.com/googleapis/google-api-python-client/commit/8e0c67f316381ec1ad358a079207215293093603
feat(apigee): update the api https://github.com/googleapis/google-api-python-client/commit/9fd19ee8a70661be02219133dda1b80d71ac4f4b
feat(appengine): update the api https://github.com/googleapis/google-api-python-client/commit/9727d32278b91dfa30d4c8c597755323741f8cd4
feat(bigquerydatatransfer): update the api https://github.com/googleapis/google-api-python-client/commit/0b36baa0400731507365bf477cc223729d5a109d
feat(cloudfunctions): update the api https://github.com/googleapis/google-api-python-client/commit/c138aff559b32709a8a81c271ab5c0c48ea3acbe
feat(compute): update the api https://github.com/googleapis/google-api-python-client/commit/3740a88b497c25e6a5aee22f873c33117034f8fa
feat(container): update the api https://github.com/googleapis/google-api-python-client/commit/90b095a5de68d5aebcfbea16078b4727774366f4
feat(containeranalysis): update the api https://github.com/googleapis/google-api-python-client/commit/07d2f4383aef325a7351831909e6cfc4b4b9f889
feat(documentai): update the api https://github.com/googleapis/google-api-python-client/commit/3d6892c775b31d0ed6caead07666e423dccdba62
feat(gkehub): update the api https://github.com/googleapis/google-api-python-client/commit/1676d9f17b499d3bb13f80ad9c4fbd0621961a41
feat(iam): update the api https://github.com/googleapis/google-api-python-client/commit/98682633e8d244ca7bbf5b3726ed305e338a1cdd
feat(ideahub): update the api https://github.com/googleapis/google-api-python-client/commit/942102dcc79691866f8febbb732e477d0e5227b4
feat(ondemandscanning): update the api https://github.com/googleapis/google-api-python-client/commit/97169382a9d0c80bf56af157a16c5b96cb95e6dd
feat(osconfig): update the api https://github.com/googleapis/google-api-python-client/commit/588812ffa314a68be1be61e229a187aecbe587e4
feat(people): update the api https://github.com/googleapis/google-api-python-client/commit/213598c2a41d6724368e1089bc3cbcaa0b2932c5
feat(securitycenter): update the api https://github.com/googleapis/google-api-python-client/commit/74bee354cf1dbaf388de26e756e9aeebe0baa311
feat(slides): update the api https://github.com/googleapis/google-api-python-client/commit/623c740d1333cfea2b5946cc22ebcc2c44a2197d
feat(tagmanager): update the api https://github.com/googleapis/google-api-python-client/commit/98664145c692ed1ca947bdb081a7463897655d28
diff --git a/docs/dyn/compute_beta.disks.html b/docs/dyn/compute_beta.disks.html
index 2fa1b9a..2ec64d8 100644
--- a/docs/dyn/compute_beta.disks.html
+++ b/docs/dyn/compute_beta.disks.html
@@ -295,6 +295,9 @@
           "status": "A String", # [Output Only] The status of disk creation. - CREATING: Disk is provisioning. - RESTORING: Source data is being copied into the disk. - FAILED: Disk creation failed. - READY: Disk is ready for use. - DELETING: Disk is deleting.
           "storageType": "A String", # [Deprecated] Storage type of the persistent disk.
           "type": "A String", # URL of the disk type resource describing which disk type to use to create the disk. Provide this when creating the disk. For example: projects/project /zones/zone/diskTypes/pd-ssd . See Persistent disk types.
+          "userLicenses": [ # A list of publicly visible user-licenses. Unlike regular licenses, user provided licenses can be modified after the disk is created. This includes a list of URLs to the license resource. For example, to provide a debian license: https://www.googleapis.com/compute/v1/projects/debian-cloud/global/licenses/debian-9-stretch
+            "A String",
+          ],
           "users": [ # [Output Only] Links to the users of the disk (attached instances) in form: projects/project/zones/zone/instances/instance
             "A String",
           ],
@@ -621,6 +624,9 @@
   "status": "A String", # [Output Only] The status of disk creation. - CREATING: Disk is provisioning. - RESTORING: Source data is being copied into the disk. - FAILED: Disk creation failed. - READY: Disk is ready for use. - DELETING: Disk is deleting.
   "storageType": "A String", # [Deprecated] Storage type of the persistent disk.
   "type": "A String", # URL of the disk type resource describing which disk type to use to create the disk. Provide this when creating the disk. For example: projects/project /zones/zone/diskTypes/pd-ssd . See Persistent disk types.
+  "userLicenses": [ # A list of publicly visible user-licenses. Unlike regular licenses, user provided licenses can be modified after the disk is created. This includes a list of URLs to the license resource. For example, to provide a debian license: https://www.googleapis.com/compute/v1/projects/debian-cloud/global/licenses/debian-9-stretch
+    "A String",
+  ],
   "users": [ # [Output Only] Links to the users of the disk (attached instances) in form: projects/project/zones/zone/instances/instance
     "A String",
   ],
@@ -814,6 +820,9 @@
   "status": "A String", # [Output Only] The status of disk creation. - CREATING: Disk is provisioning. - RESTORING: Source data is being copied into the disk. - FAILED: Disk creation failed. - READY: Disk is ready for use. - DELETING: Disk is deleting.
   "storageType": "A String", # [Deprecated] Storage type of the persistent disk.
   "type": "A String", # URL of the disk type resource describing which disk type to use to create the disk. Provide this when creating the disk. For example: projects/project /zones/zone/diskTypes/pd-ssd . See Persistent disk types.
+  "userLicenses": [ # A list of publicly visible user-licenses. Unlike regular licenses, user provided licenses can be modified after the disk is created. This includes a list of URLs to the license resource. For example, to provide a debian license: https://www.googleapis.com/compute/v1/projects/debian-cloud/global/licenses/debian-9-stretch
+    "A String",
+  ],
   "users": [ # [Output Only] Links to the users of the disk (attached instances) in form: projects/project/zones/zone/instances/instance
     "A String",
   ],
@@ -971,6 +980,9 @@
       "status": "A String", # [Output Only] The status of disk creation. - CREATING: Disk is provisioning. - RESTORING: Source data is being copied into the disk. - FAILED: Disk creation failed. - READY: Disk is ready for use. - DELETING: Disk is deleting.
       "storageType": "A String", # [Deprecated] Storage type of the persistent disk.
       "type": "A String", # URL of the disk type resource describing which disk type to use to create the disk. Provide this when creating the disk. For example: projects/project /zones/zone/diskTypes/pd-ssd . See Persistent disk types.
+      "userLicenses": [ # A list of publicly visible user-licenses. Unlike regular licenses, user provided licenses can be modified after the disk is created. This includes a list of URLs to the license resource. For example, to provide a debian license: https://www.googleapis.com/compute/v1/projects/debian-cloud/global/licenses/debian-9-stretch
+        "A String",
+      ],
       "users": [ # [Output Only] Links to the users of the disk (attached instances) in form: projects/project/zones/zone/instances/instance
         "A String",
       ],
@@ -1551,6 +1563,9 @@
   "status": "A String", # [Output Only] The status of disk creation. - CREATING: Disk is provisioning. - RESTORING: Source data is being copied into the disk. - FAILED: Disk creation failed. - READY: Disk is ready for use. - DELETING: Disk is deleting.
   "storageType": "A String", # [Deprecated] Storage type of the persistent disk.
   "type": "A String", # URL of the disk type resource describing which disk type to use to create the disk. Provide this when creating the disk. For example: projects/project /zones/zone/diskTypes/pd-ssd . See Persistent disk types.
+  "userLicenses": [ # A list of publicly visible user-licenses. Unlike regular licenses, user provided licenses can be modified after the disk is created. This includes a list of URLs to the license resource. For example, to provide a debian license: https://www.googleapis.com/compute/v1/projects/debian-cloud/global/licenses/debian-9-stretch
+    "A String",
+  ],
   "users": [ # [Output Only] Links to the users of the disk (attached instances) in form: projects/project/zones/zone/instances/instance
     "A String",
   ],