Update Swagger document for recent API updates: (#15601)

- Update description for model-version query parameter
- Update description for language query parameter (not including OCR operation)

Author: ryogok

specification/cognitiveservices/data-plane/ComputerVision/stable/v3.2/ComputerVision.json

@@ -1373,7 +1373,7 @@
     "ModelVersion": {
       "name": "model-version",
       "in": "query",
-      "description": "Optional parameter to specify the version of the AI model. Accepted values are: \"latest\", \"2021-04-01\". Defaults to \"latest\".",
+      "description": "Optional parameter to specify the version of the AI model. Accepted values are: \"latest\", \"2021-04-01\", \"2021-05-01\". Defaults to \"latest\".",
       "required": false,
       "x-ms-parameter-location": "method",
       "type": "string",
@@ -1383,16 +1383,63 @@
     "ServiceLanguage": {
       "name": "language",
       "in": "query",
-      "description": "The desired language for output generation. If this parameter is not specified, the default value is "en".Supported languages:en - English, Default. es - Spanish, ja - Japanese, pt - Portuguese, zh - Simplified Chinese.",
+      "description": "The desired language for output generation. If this parameter is not specified, the default value is \"en\". See https://aka.ms/cv-languages for list of supported languages.",
       "required": false,
       "type": "string",
       "default": "en",
       "enum": [
+        "ar",
+        "az",
+        "bg",
+        "bs",
+        "ca",
+        "cs",
+        "cy",
+        "da",
+        "de",
+        "el",
         "en",
         "es",
+        "et",
+        "eu",
+        "fi",
+        "fr",
+        "ga",
+        "gl",
+        "he",
+        "hi",
+        "hr",
+        "hu",
+        "id",
+        "it",
         "ja",
+        "kk",
+        "ko",
+        "lt",
+        "lv",
+        "mk",
+        "ms",
+        "nb",
+        "nl",
+        "pl",
+        "prs",
         "pt",
-        "zh"
+        "pt-BR",
+        "pt-PT",
+        "ro",
+        "ru",
+        "sk",
+        "sl",
+        "sr-Cyrl",
+        "sr-Latn",
+        "sv",
+        "th",
+        "tr",
+        "uk",
+        "vi",
+        "zh",
+        "zh-Hans",
+        "zh-Hant"
       ],
       "x-ms-parameter-location": "method",
       "x-nullable": false