Update generator version & rerecord tests for management projects

[pakrym]

Because the live test pipelines were unavailable at the time of #14407 the following projects were pinned to an old C# generator version.

To unpin remove <TemporaryUsePreviousGeneratorVersion>true</TemporaryUsePreviousGeneratorVersion>, run dotnet msbuild /t:GenerateCode and re-record tests.

• sdk\appconfiguration\Azure.ResourceManager.AppConfiguration\src\Azure.ResourceManager.AppConfiguration.csproj
• sdk\compute\Azure.ResourceManager.Compute\src\Azure.ResourceManager.Compute.csproj
• sdk\digitaltwins\Azure.ResourceManager.DigitalTwins\src\Azure.ResourceManager.DigitalTwins.csproj
• sdk\dns\Azure.ResourceManager.Dns\src\Azure.ResourceManager.Dns.csproj
• sdk\eventhub\Azure.ResourceManager.EventHubs\src\Azure.ResourceManager.EventHubs.csproj
• sdk\keyvault\Azure.ResourceManager.KeyVault\src\Azure.ResourceManager.KeyVault.csproj
• sdk\network\Azure.ResourceManager.Network\src\Azure.ResourceManager.Network.csproj
• sdk\resources\Azure.ResourceManager.Resources\src\Azure.ResourceManager.Resources.csproj
• sdk\sqlmanagement\Azure.ResourceManager.Sql\src\Azure.ResourceManager.Sql.csproj
• sdk\storage\Azure.ResourceManager.Storage\src\Azure.ResourceManager.Storage.csproj
• sdk\storage\Azure.ResourceManager.Storage\tests\Azure.ResourceManager.Storage.Tests.csproj
• sdk\testcommon\Azure.Management.Compute.2019_12\src\Azure.Management.Compute.csproj
• sdk\testcommon\Azure.Management.Network.2020_04\src\Azure.Management.Network.csproj
• sdk\testcommon\Azure.Management.Resources.2017_05\src\Azure.Management.Resources.csproj
• sdk\testcommon\Azure.Management.Storage.2019_06\src\Azure.Management.Storage.csproj
• sdk\cosmosdb\Azure.ResourceManager.CosmosDB\src\Azure.ResourceManager.CosmosDB.csproj

[jsquire]

Given the age of this and the shift to the track 2 packages, closing this out as stale. Please feel free to reopen if this is still needed.