feat: [Speech] adds endpointing sensitivity to streaming recognition features (#8931)

* feat: adds endpointing sensitivity to streaming recognition features

PiperOrigin-RevId: 871987204

Source-Link: googleapis/googleapis@b2f57f3

Source-Link: googleapis/googleapis-gen@3d8601e
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Speech/metadata/V2/CloudSpeech.php

@@ -31,6 +31,13 @@
 
 /**
  * Lists information about the supported locations for this service.
+This method can be called in two ways:
+
+*   **List all public locations:** Use the path `GET /v1/locations`.
+*   **List project-visible locations:** Use the path
+`GET /v1/projects/{project_id}/locations`. This may include public
+locations as well as private or other locations specifically visible
+to the project.
  *
  * This sample has been automatically generated and should be regarded as a code
  * template only. It will require modifications to work:

Speech/samples/V2/SpeechClient/list_locations.php

@@ -1090,6 +1090,13 @@ public function getLocation(GetLocationRequest $request, array $callOptions = []
 
     /**
      * Lists information about the supported locations for this service.
+    This method can be called in two ways:
+
+    *   **List all public locations:** Use the path `GET /v1/locations`.
+    *   **List project-visible locations:** Use the path
+    `GET /v1/projects/{project_id}/locations`. This may include public
+    locations as well as private or other locations specifically visible
+    to the project.
      *
      * The async variant is {@see SpeechClient::listLocationsAsync()} .
      *