Pass RepositoryName as a build argument in SourceBuild

[andriipatsula]

Ref Issue: dotnet/source-build#3898
Ref PRs: dotnet/arcade#14718

We aim to trace the origin of the artifacts we produce as part of SourceBuild. The Ref PR introduces a RepoOrigin attribute to the AssetManifest.xml file that will serve as an indicator of the artifact's source. The current proposal passes RepositoryName as a build argument in SourceBuild.

Test: https://dev.azure.com/dnceng/internal/_build/results?buildId=2430776&view=artifacts&pathAsName=false&type=publishedArtifacts

[ViktorHofer]

The RepositoryName property is already available in the repo outer build so this change shouldn't be required. It's defined per repository in the eng/SourceBuild.props or eng/DotNetBuild.props file.

I think it just needs to be passed from the repo outer to the repo inner build: https://github.com/dotnet/arcade/blob/4c4025786b88439c9b97eee33cade3b1f2f75343/src/Microsoft.DotNet.Arcade.Sdk/tools/SourceBuild/SourceBuildArcadeBuild.targets#L57

[andriipatsula]

I think it just needs to be passed from the repo outer to the repo inner build: https://github.com/dotnet/arcade/blob/4c4025786b88439c9b97eee33cade3b1f2f75343/src/Microsoft.DotNet.Arcade.Sdk/tools/SourceBuild/SourceBuildArcadeBuild.targets#L57

Thanks for feedback. Started a test build. I will let you know about the results.