[ArPow] Onboard roslyn-analyzers to arcade-powered source-build

[MichaelSimons]

No description provided.

[dotnet-issue-labeler]

I couldn't figure out the best area label to add to this issue. If you have write-permissions please help me learn by adding exactly one area label.

[omajid]

PR: dotnet/roslyn-analyzers#4930 (not complete, yet)

[MichaelSimons]

I was validating the internal builds to ensure the source-build intermediate NuGet package was getting built and published. The only internal CI build I found is https://dev.azure.com/dnceng/internal/_apps/hub/ms.vss-build-web.ci-designer-hub?pipelineId=830&branch=main (internal link) which is wired up to https://github.com/dotnet/roslyn-analyzers/blob/main/azure-pipelines-microbuild.yml. This pipeline yaml was not updated to include the source-build leg. @sharwell, can you confirm there isn't a internal CI build running for https://github.com/dotnet/roslyn-analyzers/blob/main/azure-pipelines.yml? If not, we will need to add the source-build leg to azure-pipelines-microbuild.yml.

[sharwell]

This is the pipeline for signed builds from dotnet/roslyn-analyzers: https://dev.azure.com/dnceng/internal/_build?definitionId=830&_a=summary