See https://github.com/dotnet/installer/blob/1bdd67177fffd789918216c084d855372dcf607e/src/SourceBuild/content/repo-projects/Directory.Build.props#L217-L218

These two lines should use the package output version produced by SBRP not the input version that is read from the global.json file in build.sh.

Note that dotnet/installer#19317 will remove the arcadeOutputPackageVersion. Therefore we shouldn't not depend on outputpackageversion from the AllRepoVersions.props (which wouldn't work anyways as those two msbuild sdks use a different version than the repo version).

Instead, those versions should be retrieved from the SBRP build manifest when building from source and only if the repo isn't SBRP.