Update Custom Voice API swagger. (#27512)

Fix description format issue.

Co-authored-by: Jun-wei Gan <[email protected]>

specification/cognitiveservices/data-plane/Speech/TextToSpeech/preview/2023-12-01-preview/texttospeech.json

@@ -2565,7 +2565,7 @@
     "QueryFilter": {
       "name": "filter",
       "in": "query",
-      "description": "Filter condition.\r\n  - **Supported properties:** projectId, createdDateTime, locale, kind\r\n  - **Operators:**\r\n    - eq, ne are supported for all properties.\r\n    - gt, ge, lt, le are supported for createdDateTime.\r\n  - **Example:**\r\n    - ```filter=projectId eq 'Jessica'``` (filter by project ID)\r\n    - ```filter=kind eq 'ProfessionalVoice'``` (filter project by kind)\r\n    - ```filter=locale eq 'en-US'``` (filter training set and model by locale)\r\n    - ```filter=createdDateTime gt 2022-12-30T23:59:59.99Z``` (filter resource created time after 2023-11-01)</li></ul>",
+      "description": "Filter condition.\r\n  - **Supported properties:** projectId, createdDateTime, locale, kind\r\n  - **Operators:**\r\n    - eq, ne are supported for all properties.\r\n    - gt, ge, lt, le are supported for createdDateTime.\r\n  - **Example:**\r\n    - ```filter=projectId eq 'Jessica'``` (filter by project ID)\r\n    - ```filter=kind eq 'ProfessionalVoice'``` (filter project by kind)\r\n    - ```filter=locale eq 'en-US'``` (filter training set and model by locale)\r\n    - ```filter=createdDateTime gt 2022-12-30T23:59:59.99Z``` (filter resource created time after 2023-11-01)",
       "required": false,
       "type": "string",
       "x-ms-parameter-location": "method"