Fixing error response for CosmosDB 2020-06-01-preview (#18399)

* Fixing error response for CosmosDB 2020-06-01-preview

* Updating SDK using merged swagger

* Updating generate.ps1

* Fixing assembly version

* Removing config file tag

* Rerunning with correct version of autorest.csharp

* Version 2.3.82

* Rerunning generate.ps1

eng/mgmt/mgmtmetadata/cosmos-db_resource-manager.txt

@@ -3,12 +3,12 @@ AutoRest installed successfully.
 Commencing code generation
 Generating CSharp code
 Executing AutoRest command
-cmd.exe /c autorest.cmd https://github.com/Azure/azure-rest-api-specs/blob/master/specification/cosmos-db/resource-manager/readme.md --csharp --version=v2 --reflect-api-versions --csharp-sdks-folder=C:\Users\kristynh\azure-sdk-for-net\sdk
-2020-09-23 07:35:20 UTC
+cmd.exe /c autorest.cmd https://github.com/Azure/azure-rest-api-specs/blob/master/specification/cosmos-db/resource-manager/readme.md --csharp --version=v2 --reflect-api-versions --tag=package-2020-06-preview --csharp-sdks-folder=D:\azure-sdk-for-net-nichatur\sdk
+2021-02-09 19:26:39 UTC
 Azure-rest-api-specs repository information
 GitHub fork: Azure
 Branch:      master
-Commit:      4e0c86991df0089597a58cf92823d57c2efa9d36
+Commit:      0d32cdfc7fae7d13fe02800c277e2e66ad86cfa9
 AutoRest information
 Requested version: v2
 Bootstrapper version:    autorest@2.0.4413