fix(dialogflow): update the API

#### dialogflow:v2beta1

The following keys were changed:
- schemas.GoogleCloudDialogflowCxV3EnvironmentVersionConfig.properties.version.description
- schemas.GoogleCloudDialogflowCxV3beta1EnvironmentVersionConfig.properties.version.description

#### dialogflow:v3beta1

The following keys were changed:
- schemas.GoogleCloudDialogflowCxV3EnvironmentVersionConfig.properties.version.description
- schemas.GoogleCloudDialogflowCxV3beta1EnvironmentVersionConfig.properties.version.description

#### dialogflow:v2

The following keys were changed:
- schemas.GoogleCloudDialogflowCxV3EnvironmentVersionConfig.properties.version.description
- schemas.GoogleCloudDialogflowCxV3beta1EnvironmentVersionConfig.properties.version.description

#### dialogflow:v3

The following keys were changed:
- schemas.GoogleCloudDialogflowCxV3EnvironmentVersionConfig.properties.version.description
- schemas.GoogleCloudDialogflowCxV3beta1EnvironmentVersionConfig.properties.version.description

Author: yoshi-automation

discovery/dialogflow-v2.json

@@ -8714,7 +8714,7 @@
       }
     }
   },
-  "revision": "20240812",
+  "revision": "20240828",
   "rootUrl": "https://dialogflow.googleapis.com/",
   "schemas": {
     "GoogleCloudDialogflowCxV3AdvancedSettings": {
@@ -9167,7 +9167,7 @@
       "id": "GoogleCloudDialogflowCxV3EnvironmentVersionConfig",
       "properties": {
         "version": {
-          "description": "Required. Format: projects//locations//agents//flows//versions/.",
+          "description": "Required. Both flow and playbook versions are supported. Format for flow version: projects//locations//agents//flows//versions/. Format for playbook version: projects//locations//agents//playbooks//versions/.",
           "type": "string"
         }
       },
@@ -11472,7 +11472,7 @@
       "id": "GoogleCloudDialogflowCxV3beta1EnvironmentVersionConfig",
       "properties": {
         "version": {
-          "description": "Required. Format: projects//locations//agents//flows//versions/.",
+          "description": "Required. Both flow and playbook versions are supported. Format for flow version: projects//locations//agents//flows//versions/. Format for playbook version: projects//locations//agents//playbooks//versions/.",
           "type": "string"
         }
       },

discovery/dialogflow-v2beta1.json

@@ -8082,7 +8082,7 @@
       }
     }
   },
-  "revision": "20240812",
+  "revision": "20240828",
   "rootUrl": "https://dialogflow.googleapis.com/",
   "schemas": {
     "GoogleCloudDialogflowCxV3AdvancedSettings": {
@@ -8535,7 +8535,7 @@
       "id": "GoogleCloudDialogflowCxV3EnvironmentVersionConfig",
       "properties": {
         "version": {
-          "description": "Required. Format: projects//locations//agents//flows//versions/.",
+          "description": "Required. Both flow and playbook versions are supported. Format for flow version: projects//locations//agents//flows//versions/. Format for playbook version: projects//locations//agents//playbooks//versions/.",
           "type": "string"
         }
       },
@@ -10840,7 +10840,7 @@
       "id": "GoogleCloudDialogflowCxV3beta1EnvironmentVersionConfig",
       "properties": {
         "version": {
-          "description": "Required. Format: projects//locations//agents//flows//versions/.",
+          "description": "Required. Both flow and playbook versions are supported. Format for flow version: projects//locations//agents//flows//versions/. Format for playbook version: projects//locations//agents//playbooks//versions/.",
           "type": "string"
         }
       },

discovery/dialogflow-v3.json

@@ -4453,7 +4453,7 @@
       }
     }
   },
-  "revision": "20240822",
+  "revision": "20240828",
   "rootUrl": "https://dialogflow.googleapis.com/",
   "schemas": {
     "GoogleCloudDialogflowCxV3AdvancedSettings": {
@@ -5863,7 +5863,7 @@
       "id": "GoogleCloudDialogflowCxV3EnvironmentVersionConfig",
       "properties": {
         "version": {
-          "description": "Required. Format: projects//locations//agents//flows//versions/.",
+          "description": "Required. Both flow and playbook versions are supported. Format for flow version: projects//locations//agents//flows//versions/. Format for playbook version: projects//locations//agents//playbooks//versions/.",
           "type": "string"
         }
       },
@@ -10669,7 +10669,7 @@
       "id": "GoogleCloudDialogflowCxV3beta1EnvironmentVersionConfig",
       "properties": {
         "version": {
-          "description": "Required. Format: projects//locations//agents//flows//versions/.",
+          "description": "Required. Both flow and playbook versions are supported. Format for flow version: projects//locations//agents//flows//versions/. Format for playbook version: projects//locations//agents//playbooks//versions/.",
           "type": "string"
         }
       },

discovery/dialogflow-v3beta1.json

@@ -5185,7 +5185,7 @@
       }
     }
   },
-  "revision": "20240822",
+  "revision": "20240828",
   "rootUrl": "https://dialogflow.googleapis.com/",
   "schemas": {
     "GoogleCloudDialogflowCxV3AdvancedSettings": {
@@ -5638,7 +5638,7 @@
       "id": "GoogleCloudDialogflowCxV3EnvironmentVersionConfig",
       "properties": {
         "version": {
-          "description": "Required. Format: projects//locations//agents//flows//versions/.",
+          "description": "Required. Both flow and playbook versions are supported. Format for flow version: projects//locations//agents//flows//versions/. Format for playbook version: projects//locations//agents//playbooks//versions/.",
           "type": "string"
         }
       },
@@ -9208,7 +9208,7 @@
       "id": "GoogleCloudDialogflowCxV3beta1EnvironmentVersionConfig",
       "properties": {
         "version": {
-          "description": "Required. Format: projects//locations//agents//flows//versions/.",
+          "description": "Required. Both flow and playbook versions are supported. Format for flow version: projects//locations//agents//flows//versions/. Format for playbook version: projects//locations//agents//playbooks//versions/.",
           "type": "string"
         }
       },

src/apis/dialogflow/v2.ts

@@ -589,7 +589,7 @@ export namespace dialogflow_v2 {
    */
   export interface Schema$GoogleCloudDialogflowCxV3beta1EnvironmentVersionConfig {
     /**
-     * Required. Format: projects//locations//agents//flows//versions/.
+     * Required. Both flow and playbook versions are supported. Format for flow version: projects//locations//agents//flows//versions/. Format for playbook version: projects//locations//agents//playbooks//versions/.
      */
     version?: string | null;
   }
@@ -2224,7 +2224,7 @@ export namespace dialogflow_v2 {
    */
   export interface Schema$GoogleCloudDialogflowCxV3EnvironmentVersionConfig {
     /**
-     * Required. Format: projects//locations//agents//flows//versions/.
+     * Required. Both flow and playbook versions are supported. Format for flow version: projects//locations//agents//flows//versions/. Format for playbook version: projects//locations//agents//playbooks//versions/.
      */
     version?: string | null;
   }

src/apis/dialogflow/v2beta1.ts

@@ -589,7 +589,7 @@ export namespace dialogflow_v2beta1 {
    */
   export interface Schema$GoogleCloudDialogflowCxV3beta1EnvironmentVersionConfig {
     /**
-     * Required. Format: projects//locations//agents//flows//versions/.
+     * Required. Both flow and playbook versions are supported. Format for flow version: projects//locations//agents//flows//versions/. Format for playbook version: projects//locations//agents//playbooks//versions/.
      */
     version?: string | null;
   }
@@ -2224,7 +2224,7 @@ export namespace dialogflow_v2beta1 {
    */
   export interface Schema$GoogleCloudDialogflowCxV3EnvironmentVersionConfig {
     /**
-     * Required. Format: projects//locations//agents//flows//versions/.
+     * Required. Both flow and playbook versions are supported. Format for flow version: projects//locations//agents//flows//versions/. Format for playbook version: projects//locations//agents//playbooks//versions/.
      */
     version?: string | null;
   }

src/apis/dialogflow/v3.ts

@@ -821,7 +821,7 @@ export namespace dialogflow_v3 {
    */
   export interface Schema$GoogleCloudDialogflowCxV3beta1EnvironmentVersionConfig {
     /**
-     * Required. Format: projects//locations//agents//flows//versions/.
+     * Required. Both flow and playbook versions are supported. Format for flow version: projects//locations//agents//flows//versions/. Format for playbook version: projects//locations//agents//playbooks//versions/.
      */
     version?: string | null;
   }
@@ -2921,7 +2921,7 @@ export namespace dialogflow_v3 {
    */
   export interface Schema$GoogleCloudDialogflowCxV3EnvironmentVersionConfig {
     /**
-     * Required. Format: projects//locations//agents//flows//versions/.
+     * Required. Both flow and playbook versions are supported. Format for flow version: projects//locations//agents//flows//versions/. Format for playbook version: projects//locations//agents//playbooks//versions/.
      */
     version?: string | null;
   }

src/apis/dialogflow/v3beta1.ts

@@ -1526,7 +1526,7 @@ export namespace dialogflow_v3beta1 {
    */
   export interface Schema$GoogleCloudDialogflowCxV3beta1EnvironmentVersionConfig {
     /**
-     * Required. Format: projects//locations//agents//flows//versions/.
+     * Required. Both flow and playbook versions are supported. Format for flow version: projects//locations//agents//flows//versions/. Format for playbook version: projects//locations//agents//playbooks//versions/.
      */
     version?: string | null;
   }
@@ -5551,7 +5551,7 @@ export namespace dialogflow_v3beta1 {
    */
   export interface Schema$GoogleCloudDialogflowCxV3EnvironmentVersionConfig {
     /**
-     * Required. Format: projects//locations//agents//flows//versions/.
+     * Required. Both flow and playbook versions are supported. Format for flow version: projects//locations//agents//flows//versions/. Format for playbook version: projects//locations//agents//playbooks//versions/.
      */
     version?: string | null;
   }