Update swagger_to_sdk_config.json (Azure#12412)

@microsoft.azure/autorest.csharp@2.3.84 is a preview version. Going back to 82

Author: isra-fel

swagger_to_sdk_config.json

@@ -7,7 +7,7 @@
       "reflect-api-versions": "",
       "license-header": "MICROSOFT_MIT_NO_VERSION",
       "sdkrel:csharp-sdks-folder": "./sdk",
-      "use": "@microsoft.azure/autorest.csharp@2.3.84"
+      "use": "@microsoft.azure/autorest.csharp@2.3.82"
     },
     "advanced_options": {
       "create_sdk_pull_requests": true,