chore: Update discovery artifacts (#1462)

## Deleted keys were detected in the following stable discovery artifacts:
sqladmin v1 https://github.com/googleapis/google-api-python-client/commit/cef24d829ab5be71563a2b668b8f6cf5dda2c8e4

## Deleted keys were detected in the following pre-stable discovery artifacts:
alertcenter v1beta1 https://github.com/googleapis/google-api-python-client/commit/70810a52c85c6d0d6f00d7afb41c8608261eaebc

## Discovery Artifact Change Summary:
feat(alertcenter): update the api https://github.com/googleapis/google-api-python-client/commit/70810a52c85c6d0d6f00d7afb41c8608261eaebc
feat(chat): update the api https://github.com/googleapis/google-api-python-client/commit/a577cd0b71951176bbf849c1f7f139127205da54
feat(cloudbuild): update the api https://github.com/googleapis/google-api-python-client/commit/9066056a8b106d441fb7686fe84359484d0d58bc
feat(content): update the api https://github.com/googleapis/google-api-python-client/commit/b123349da33c11c0172a8efb3fadef685a30e6e1
feat(displayvideo): update the api https://github.com/googleapis/google-api-python-client/commit/c525d726ee6cffdd4bc7afd69080d5e52bae83a0
feat(dns): update the api https://github.com/googleapis/google-api-python-client/commit/13436ccd2b835fda5cb86952ac4ea991ee8651d8
feat(eventarc): update the api https://github.com/googleapis/google-api-python-client/commit/6be3394a64a5eb509f68ef779680fd36837708ee
feat(file): update the api https://github.com/googleapis/google-api-python-client/commit/817a0e636771445a988ef479bd52740f754b901a
feat(monitoring): update the api https://github.com/googleapis/google-api-python-client/commit/bd32149f308467f0f659119587afc77dcec65b14
feat(people): update the api https://github.com/googleapis/google-api-python-client/commit/aa6b47df40c5289f33aef6fb6aa007df2d038e20
feat(retail): update the api https://github.com/googleapis/google-api-python-client/commit/d39f06e2d77034bc837604a41dd52c577f158bf2
feat(securitycenter): update the api https://github.com/googleapis/google-api-python-client/commit/999fab5178208639c9eef289f9f441052ed832fc
feat(speech): update the api https://github.com/googleapis/google-api-python-client/commit/3b2c0fa62b2a0c86bba1e97f1b18f93250dbd551
feat(sqladmin): update the api https://github.com/googleapis/google-api-python-client/commit/cef24d829ab5be71563a2b668b8f6cf5dda2c8e4
diff --git a/googleapiclient/discovery_cache/documents/speech.v1p1beta1.json b/googleapiclient/discovery_cache/documents/speech.v1p1beta1.json
index 78243a5..0424806 100644
--- a/googleapiclient/discovery_cache/documents/speech.v1p1beta1.json
+++ b/googleapiclient/discovery_cache/documents/speech.v1p1beta1.json
@@ -524,7 +524,7 @@
       }
     }
   },
-  "revision": "20210706",
+  "revision": "20210714",
   "rootUrl": "https://speech.googleapis.com/",
   "schemas": {
     "ClassItem": {
@@ -547,7 +547,7 @@
           "description": "Required. The custom class to create."
         },
         "customClassId": {
-          "description": "The ID to use for the custom class, which will become the final component of the custom class' resource name. This value should be 4-63 characters, and valid characters are /a-z-/.",
+          "description": "Required. The ID to use for the custom class, which will become the final component of the custom class' resource name. This value should be 4-63 characters, and valid characters are /a-z-/.",
           "type": "string"
         }
       },
@@ -562,7 +562,7 @@
           "description": "Required. The phrase set to create."
         },
         "phraseSetId": {
-          "description": "The ID to use for the phrase set, which will become the final component of the phrase set's resource name. This value should be 4-63 characters, and valid characters are /a-z-/.",
+          "description": "Required. The ID to use for the phrase set, which will become the final component of the phrase set's resource name. This value should be 4-63 characters, and valid characters are /a-z-/.",
           "type": "string"
         }
       },
@@ -596,6 +596,25 @@
       "properties": {},
       "type": "object"
     },
+    "Entry": {
+      "description": "A single replacement configuration.",
+      "id": "Entry",
+      "properties": {
+        "caseSensitive": {
+          "description": "Whether the search is case sensitive.",
+          "type": "boolean"
+        },
+        "replace": {
+          "description": "What to replace with. Max length is 100 characters.",
+          "type": "string"
+        },
+        "search": {
+          "description": "What to replace. Max length is 100 characters.",
+          "type": "string"
+        }
+      },
+      "type": "object"
+    },
     "ListCustomClassesResponse": {
       "description": "Message returned to the client by the `ListCustomClasses` method.",
       "id": "ListCustomClassesResponse",
@@ -931,6 +950,10 @@
           },
           "type": "array"
         },
+        "transcriptNormalization": {
+          "$ref": "TranscriptNormalization",
+          "description": "Use transcription normalization to automatically replace parts of the transcript with phrases of your choosing. For StreamingRecognize, this normalization only applies to stable partial transcripts (stability > 0.8) and final transcripts."
+        },
         "useEnhanced": {
           "description": "Set to true to use an enhanced model for speech recognition. If `use_enhanced` is set to true and the `model` field is not set, then an appropriate enhanced model is chosen if an enhanced model exists for the audio. If `use_enhanced` is true and an enhanced version of the specified model does not exist, then the speech is recognized using the standard version of the specified model.",
           "type": "boolean"
@@ -1222,6 +1245,17 @@
       },
       "type": "object"
     },
+    "TranscriptNormalization": {
+      "description": "Transcription normalization configuration. Use transcription normalization to automatically replace parts of the transcript with phrases of your choosing. For StreamingRecognize, this normalization only applies to stable partial transcripts (stability > 0.8) and final transcripts.",
+      "id": "TranscriptNormalization",
+      "properties": {
+        "entries": {
+          "$ref": "Entry",
+          "description": "A list of replacement entries. We will perform replacement with one entry at a time. For example, the second entry in [\"cat\" => \"dog\", \"mountain cat\" => \"mountain dog\"] will never be applied because we will always process the first entry before it. At most 100 entries."
+        }
+      },
+      "type": "object"
+    },
     "TranscriptOutputConfig": {
       "description": "Specifies an optional destination for the recognition results.",
       "id": "TranscriptOutputConfig",