fix(transcoder): update the API

#### transcoder:v1

The following keys were changed:
- schemas.MuxStream.properties.container.description

Author: yoshi-automation

discovery/transcoder-v1.json

@@ -385,7 +385,7 @@
       }
     }
   },
-  "revision": "20241009",
+  "revision": "20250219",
   "rootUrl": "https://transcoder.googleapis.com/",
   "schemas": {
     "AdBreak": {
@@ -1486,7 +1486,7 @@
       "id": "MuxStream",
       "properties": {
         "container": {
-          "description": "The container format. The default is `mp4` Supported container formats: - `ts` - `fmp4`- the corresponding file extension is `.m4s` - `mp4` - `vtt` - `ogg` See also: [Supported input and output formats](https://cloud.google.com/transcoder/docs/concepts/supported-input-and-output-formats)",
+          "description": "The container format. The default is `mp4` Supported streaming formats: - `ts` - `fmp4`- the corresponding file extension is `.m4s` Supported standalone file formats: - `mp4` - `mp3` - `ogg` - `vtt` See also: [Supported input and output formats](https://cloud.google.com/transcoder/docs/concepts/supported-input-and-output-formats)",
           "type": "string"
         },
         "elementaryStreams": {

src/apis/transcoder/v1.ts

@@ -944,7 +944,7 @@ export namespace transcoder_v1 {
    */
   export interface Schema$MuxStream {
     /**
-     * The container format. The default is `mp4` Supported container formats: - `ts` - `fmp4`- the corresponding file extension is `.m4s` - `mp4` - `vtt` - `ogg` See also: [Supported input and output formats](https://cloud.google.com/transcoder/docs/concepts/supported-input-and-output-formats)
+     * The container format. The default is `mp4` Supported streaming formats: - `ts` - `fmp4`- the corresponding file extension is `.m4s` Supported standalone file formats: - `mp4` - `mp3` - `ogg` - `vtt` See also: [Supported input and output formats](https://cloud.google.com/transcoder/docs/concepts/supported-input-and-output-formats)
      */
     container?: string | null;
     /**