Update v3 Python Worker Version to 1.2.1
MODIFY
build/python.props
build/python.props
<Project>
<ItemGroup>
- <PackageReference Include="Microsoft.Azure.Functions.PythonWorker" Version="3.1.2.0" />
+ <PackageReference Include="Microsoft.Azure.Functions.PythonWorker" Version="3.1.2.1" />
</ItemGroup>
</Project>

MODIFY
release_notes.md
release_notes.md
<!-- Please add your release notes in the following format:
- My change description (#PR)
-->
+- Update Python Worker Version to [1.2.1](https://github.com/Azure/azure-functions-python-worker/releases/tag/1.2.1)
- Added a feature flag to opt out of the default behavior where the host sets the environment name to `Development` when running in debug mode. To disable the behavior, set the app setting: `AzureWebJobsFeatureFlags` to `DisableDevModeInDebug`
- Reorder CORS and EasyAuth middleware to prevent EasyAuth from blocking CORS requests (#7315)

MODIFY
test/WebJobs.Script.Tests/WebJobs.Script.Tests.csproj
test/WebJobs.Script.Tests/WebJobs.Script.Tests.csproj
<PackageReference Include="appinsights.testlogger" Version="1.0.0" />
<PackageReference Include="FluentAssertions" Version="5.9.0" />
<PackageReference Include="Microsoft.AspNetCore.TestHost" Version="3.1.0" />
- <PackageReference Include="Microsoft.Azure.Functions.PythonWorker" Version="3.1.2.0" />
+ <PackageReference Include="Microsoft.Azure.Functions.PythonWorker" Version="3.1.2.1" />
<PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.8.0" />
<PackageReference Include="Moq" Version="4.9.0" />
<PackageReference Include="StyleCop.Analyzers" Version="1.1.0-beta004" />

Update v3 Python Worker Version to 1.2.1 (#7338)

Co-authored-by: AzureFunctionsPython <funcdisc@microsoft.com>