feat(dialogflow): update the API

#### dialogflow:v3beta1

The following keys were added:
- schemas.GoogleCloudDialogflowCxV3beta1QueryResult.properties.dtmf.$ref
- schemas.GoogleCloudDialogflowCxV3beta1QueryResult.properties.dtmf.description

#### dialogflow:v3

The following keys were added:
- schemas.GoogleCloudDialogflowCxV3QueryResult.properties.dtmf.$ref
- schemas.GoogleCloudDialogflowCxV3QueryResult.properties.dtmf.description

discovery/dialogflow-v3.json

@@ -3719,7 +3719,7 @@
       }
     }
   },
-  "revision": "20210918",
+  "revision": "20211007",
   "rootUrl": "https://dialogflow.googleapis.com/",
   "schemas": {
     "GoogleCloudDialogflowCxV3AdvancedSettings": {
@@ -6171,6 +6171,10 @@
           "description": "The free-form diagnostic info. For example, this field could contain webhook call latency. The string keys of the Struct's fields map can change without notice.",
           "type": "object"
         },
+        "dtmf": {
+          "$ref": "GoogleCloudDialogflowCxV3DtmfInput",
+          "description": "If a DTMF was provided as input, this field will contain a copy of the DTMFInput."
+        },
         "intent": {
           "$ref": "GoogleCloudDialogflowCxV3Intent",
           "description": "The Intent that matched the conversational query. Some, not all fields are filled in this message, including but not limited to: `name` and `display_name`. This field is deprecated, please use QueryResult.match instead."

discovery/dialogflow-v3beta1.json

@@ -3719,7 +3719,7 @@
       }
     }
   },
-  "revision": "20210918",
+  "revision": "20211007",
   "rootUrl": "https://dialogflow.googleapis.com/",
   "schemas": {
     "GoogleCloudDialogflowCxV3AudioInput": {
@@ -7840,6 +7840,10 @@
           "description": "The free-form diagnostic info. For example, this field could contain webhook call latency. The string keys of the Struct's fields map can change without notice.",
           "type": "object"
         },
+        "dtmf": {
+          "$ref": "GoogleCloudDialogflowCxV3beta1DtmfInput",
+          "description": "If a DTMF was provided as input, this field will contain a copy of the DTMFInput."
+        },
         "intent": {
           "$ref": "GoogleCloudDialogflowCxV3beta1Intent",
           "description": "The Intent that matched the conversational query. Some, not all fields are filled in this message, including but not limited to: `name` and `display_name`. This field is deprecated, please use QueryResult.match instead."

src/apis/dialogflow/v3.ts

@@ -3130,6 +3130,10 @@ export namespace dialogflow_v3 {
      * The free-form diagnostic info. For example, this field could contain webhook call latency. The string keys of the Struct's fields map can change without notice.
      */
     diagnosticInfo?: {[key: string]: any} | null;
+    /**
+     * If a DTMF was provided as input, this field will contain a copy of the DTMFInput.
+     */
+    dtmf?: Schema$GoogleCloudDialogflowCxV3DtmfInput;
     /**
      * The Intent that matched the conversational query. Some, not all fields are filled in this message, including but not limited to: `name` and `display_name`. This field is deprecated, please use QueryResult.match instead.
      */

src/apis/dialogflow/v3beta1.ts

@@ -1918,6 +1918,10 @@ export namespace dialogflow_v3beta1 {
      * The free-form diagnostic info. For example, this field could contain webhook call latency. The string keys of the Struct's fields map can change without notice.
      */
     diagnosticInfo?: {[key: string]: any} | null;
+    /**
+     * If a DTMF was provided as input, this field will contain a copy of the DTMFInput.
+     */
+    dtmf?: Schema$GoogleCloudDialogflowCxV3beta1DtmfInput;
     /**
      * The Intent that matched the conversational query. Some, not all fields are filled in this message, including but not limited to: `name` and `display_name`. This field is deprecated, please use QueryResult.match instead.
      */