chore: Update discovery artifacts (#1381)

## Deleted keys were detected in the following stable discovery artifacts:
documentai v1 https://github.com/googleapis/google-api-python-client/commit/222030d8c1583f49657862a308b5eae41311d7e7
serviceconsumermanagement v1 https://github.com/googleapis/google-api-python-client/commit/e2046363f037151e02020ea178651b814c11761a
serviceusage v1 https://github.com/googleapis/google-api-python-client/commit/b79b21e71246ab6935214ca751125c83b1990167

## Deleted keys were detected in the following pre-stable discovery artifacts:
firebase v1beta1 https://github.com/googleapis/google-api-python-client/commit/6bd0412a11a1a55770415fdc76100b3c76a83a94
serviceconsumermanagement v1beta1 https://github.com/googleapis/google-api-python-client/commit/e2046363f037151e02020ea178651b814c11761a
serviceusage v1beta1 https://github.com/googleapis/google-api-python-client/commit/b79b21e71246ab6935214ca751125c83b1990167

## Discovery Artifact Change Summary:
feat(apigee): update the api https://github.com/googleapis/google-api-python-client/commit/37f31420ffc3adb1bdd23d7fc91f80701522aac8
feat(container): update the api https://github.com/googleapis/google-api-python-client/commit/514acdbf2c7eeaf6b1b9773c63b180131418ff57
feat(dlp): update the api https://github.com/googleapis/google-api-python-client/commit/7e3d1c4ab85d50307d42af3048f9a7dd47a2b9eb
feat(documentai): update the api https://github.com/googleapis/google-api-python-client/commit/222030d8c1583f49657862a308b5eae41311d7e7
feat(firebase): update the api https://github.com/googleapis/google-api-python-client/commit/6bd0412a11a1a55770415fdc76100b3c76a83a94
feat(ondemandscanning): update the api https://github.com/googleapis/google-api-python-client/commit/b77d12d24d17264123231dd86699fceada262440
feat(osconfig): update the api https://github.com/googleapis/google-api-python-client/commit/c541143744c4b077d0a044455a35d0de227a0bf6
feat(prod_tt_sasportal): update the api https://github.com/googleapis/google-api-python-client/commit/1e0f4a6e5e0bfde1ba4c06223d7fb02f63756690
feat(serviceconsumermanagement): update the api https://github.com/googleapis/google-api-python-client/commit/e2046363f037151e02020ea178651b814c11761a
feat(serviceusage): update the api https://github.com/googleapis/google-api-python-client/commit/b79b21e71246ab6935214ca751125c83b1990167
diff --git a/googleapiclient/discovery_cache/documents/recommender.v1beta1.json b/googleapiclient/discovery_cache/documents/recommender.v1beta1.json
index 44895da..81879f0 100644
--- a/googleapiclient/discovery_cache/documents/recommender.v1beta1.json
+++ b/googleapiclient/discovery_cache/documents/recommender.v1beta1.json
@@ -139,7 +139,7 @@
                       ]
                     },
                     "list": {
-                      "description": "Lists insights for a Cloud project. Requires the recommender.*.list IAM permission for the specified insight type.",
+                      "description": "Lists insights for the specified Cloud Resource. Requires the recommender.*.list IAM permission for the specified insight type.",
                       "flatPath": "v1beta1/billingAccounts/{billingAccountsId}/locations/{locationsId}/insightTypes/{insightTypesId}/insights",
                       "httpMethod": "GET",
                       "id": "recommender.billingAccounts.locations.insightTypes.insights.list",
@@ -241,7 +241,7 @@
                       ]
                     },
                     "list": {
-                      "description": "Lists recommendations for a Cloud project. Requires the recommender.*.list IAM permission for the specified recommender.",
+                      "description": "Lists recommendations for the specified Cloud Resource. Requires the recommender.*.list IAM permission for the specified recommender.",
                       "flatPath": "v1beta1/billingAccounts/{billingAccountsId}/locations/{locationsId}/recommenders/{recommendersId}/recommendations",
                       "httpMethod": "GET",
                       "id": "recommender.billingAccounts.locations.recommenders.recommendations.list",
@@ -407,7 +407,7 @@
                       ]
                     },
                     "list": {
-                      "description": "Lists insights for a Cloud project. Requires the recommender.*.list IAM permission for the specified insight type.",
+                      "description": "Lists insights for the specified Cloud Resource. Requires the recommender.*.list IAM permission for the specified insight type.",
                       "flatPath": "v1beta1/folders/{foldersId}/locations/{locationsId}/insightTypes/{insightTypesId}/insights",
                       "httpMethod": "GET",
                       "id": "recommender.folders.locations.insightTypes.insights.list",
@@ -509,7 +509,7 @@
                       ]
                     },
                     "list": {
-                      "description": "Lists recommendations for a Cloud project. Requires the recommender.*.list IAM permission for the specified recommender.",
+                      "description": "Lists recommendations for the specified Cloud Resource. Requires the recommender.*.list IAM permission for the specified recommender.",
                       "flatPath": "v1beta1/folders/{foldersId}/locations/{locationsId}/recommenders/{recommendersId}/recommendations",
                       "httpMethod": "GET",
                       "id": "recommender.folders.locations.recommenders.recommendations.list",
@@ -675,7 +675,7 @@
                       ]
                     },
                     "list": {
-                      "description": "Lists insights for a Cloud project. Requires the recommender.*.list IAM permission for the specified insight type.",
+                      "description": "Lists insights for the specified Cloud Resource. Requires the recommender.*.list IAM permission for the specified insight type.",
                       "flatPath": "v1beta1/organizations/{organizationsId}/locations/{locationsId}/insightTypes/{insightTypesId}/insights",
                       "httpMethod": "GET",
                       "id": "recommender.organizations.locations.insightTypes.insights.list",
@@ -777,7 +777,7 @@
                       ]
                     },
                     "list": {
-                      "description": "Lists recommendations for a Cloud project. Requires the recommender.*.list IAM permission for the specified recommender.",
+                      "description": "Lists recommendations for the specified Cloud Resource. Requires the recommender.*.list IAM permission for the specified recommender.",
                       "flatPath": "v1beta1/organizations/{organizationsId}/locations/{locationsId}/recommenders/{recommendersId}/recommendations",
                       "httpMethod": "GET",
                       "id": "recommender.organizations.locations.recommenders.recommendations.list",
@@ -943,7 +943,7 @@
                       ]
                     },
                     "list": {
-                      "description": "Lists insights for a Cloud project. Requires the recommender.*.list IAM permission for the specified insight type.",
+                      "description": "Lists insights for the specified Cloud Resource. Requires the recommender.*.list IAM permission for the specified insight type.",
                       "flatPath": "v1beta1/projects/{projectsId}/locations/{locationsId}/insightTypes/{insightTypesId}/insights",
                       "httpMethod": "GET",
                       "id": "recommender.projects.locations.insightTypes.insights.list",
@@ -1045,7 +1045,7 @@
                       ]
                     },
                     "list": {
-                      "description": "Lists recommendations for a Cloud project. Requires the recommender.*.list IAM permission for the specified recommender.",
+                      "description": "Lists recommendations for the specified Cloud Resource. Requires the recommender.*.list IAM permission for the specified recommender.",
                       "flatPath": "v1beta1/projects/{projectsId}/locations/{locationsId}/recommenders/{recommendersId}/recommendations",
                       "httpMethod": "GET",
                       "id": "recommender.projects.locations.recommenders.recommendations.list",
@@ -1178,7 +1178,7 @@
       }
     }
   },
-  "revision": "20210514",
+  "revision": "20210522",
   "rootUrl": "https://recommender.googleapis.com/",
   "schemas": {
     "GoogleCloudRecommenderV1beta1CostProjection": {
@@ -1479,7 +1479,7 @@
       "id": "GoogleCloudRecommenderV1beta1Operation",
       "properties": {
         "action": {
-          "description": "Type of this operation. Contains one of 'and', 'remove', 'replace', 'move', 'copy', 'test' and 'custom' operations. This field is case-insensitive and always populated.",
+          "description": "Type of this operation. Contains one of 'add', 'remove', 'replace', 'move', 'copy', 'test' and 'custom' operations. This field is case-insensitive and always populated.",
           "type": "string"
         },
         "path": {