feat(dialogflow): update the api

#### dialogflow:v2

The following keys were added:
- schemas.GoogleCloudDialogflowV2GenerateStatelessSuggestionRequest.properties.securitySettings.type (Total Keys: 1)

#### dialogflow:v2beta1

The following keys were added:
- schemas.GoogleCloudDialogflowV2beta1GenerateStatelessSuggestionRequest.properties.securitySettings.type (Total Keys: 1)

Author: yoshi-automation

docs/dyn/dialogflow_v2.projects.locations.statelessSuggestion.html

@@ -213,6 +213,7 @@ <h3>Method Details</h3>
     &quot;updateTime&quot;: &quot;A String&quot;, # Output only. Update time of this generator.
   },
   &quot;generatorName&quot;: &quot;A String&quot;, # The resource name of the existing created generator. Format: `projects//locations//generators/`
+  &quot;securitySettings&quot;: &quot;A String&quot;, # Optional. Name of the CX SecuritySettings which is used to redact generated response. If this field is empty, try to fetch v2 security_settings, which is a project level setting. If this field is empty and no v2 security_settings set up in this project, no redaction will be done. Format: `projects//locations//securitySettings/`.
   &quot;triggerEvents&quot;: [ # Optional. A list of trigger events. Generator will be triggered only if it&#x27;s trigger event is included here.
     &quot;A String&quot;,
   ],

docs/dyn/dialogflow_v2beta1.projects.locations.statelessSuggestion.html

@@ -213,6 +213,7 @@ <h3>Method Details</h3>
     &quot;updateTime&quot;: &quot;A String&quot;, # Output only. Update time of this generator.
   },
   &quot;generatorName&quot;: &quot;A String&quot;, # The resource name of the existing created generator. Format: `projects//locations//generators/`
+  &quot;securitySettings&quot;: &quot;A String&quot;, # Optional. Name of the CX SecuritySettings which is used to redact generated response. If this field is empty, try to fetch v2 security_settings, which is a project level setting. If this field is empty and no v2 security_settings set up in this project, no redaction will be done. Format: `projects//locations//securitySettings/`.
   &quot;triggerEvents&quot;: [ # Optional. A list of trigger events. Generator will be triggered only if it&#x27;s trigger event is included here.
     &quot;A String&quot;,
   ],

googleapiclient/discovery_cache/documents/dialogflow.v2.json

@@ -8805,7 +8805,7 @@
 }
 }
 },
-"revision": "20250422",
+"revision": "20250508",
 "rootUrl": "https://dialogflow.googleapis.com/",
 "schemas": {
 "GoogleCloudDialogflowCxV3AdvancedSettings": {
@@ -15924,6 +15924,10 @@ true
 "description": "The resource name of the existing created generator. Format: `projects//locations//generators/`",
 "type": "string"
 },
+"securitySettings": {
+"description": "Optional. Name of the CX SecuritySettings which is used to redact generated response. If this field is empty, try to fetch v2 security_settings, which is a project level setting. If this field is empty and no v2 security_settings set up in this project, no redaction will be done. Format: `projects//locations//securitySettings/`.",
+"type": "string"
+},
 "triggerEvents": {
 "description": "Optional. A list of trigger events. Generator will be triggered only if it's trigger event is included here.",
 "items": {

googleapiclient/discovery_cache/documents/dialogflow.v2beta1.json

@@ -8602,7 +8602,7 @@
 }
 }
 },
-"revision": "20250422",
+"revision": "20250508",
 "rootUrl": "https://dialogflow.googleapis.com/",
 "schemas": {
 "GoogleCloudDialogflowCxV3AdvancedSettings": {
@@ -18161,6 +18161,10 @@ true
 "description": "The resource name of the existing created generator. Format: `projects//locations//generators/`",
 "type": "string"
 },
+"securitySettings": {
+"description": "Optional. Name of the CX SecuritySettings which is used to redact generated response. If this field is empty, try to fetch v2 security_settings, which is a project level setting. If this field is empty and no v2 security_settings set up in this project, no redaction will be done. Format: `projects//locations//securitySettings/`.",
+"type": "string"
+},
 "triggerEvents": {
 "description": "Optional. A list of trigger events. Generator will be triggered only if it's trigger event is included here.",
 "items": {