[main] Update dependencies from dotnet/source-build-reference-packages

[dotnet-maestro]

This pull request updates the following dependencies

From https://github.com/dotnet/source-build-reference-packages

• Subscription: af712b65-5e6e-4ab3-9c28-08db4c03ab45
• Build: 20230706.4
• Date Produced: July 6, 2023 9:26:41 PM UTC
• Commit: 81a9aad6994047fc0e589a82597d1d8c179f22bd
• Branch: refs/heads/main

• Updates:
  • Microsoft.SourceBuild.Intermediate.source-build-reference-packages: from 8.0.0-alpha.1.23323.1 to 8.0.0-alpha.1.23356.4

[Evangelink]

@MichaelSimons Do you have any idea why this bump is causing an issue on NuGet.Frameworks:

1 new pre-builts discovered! Detailed usage report can be found at /__w/1/s/artifacts/source-build/self/prebuilt-report/baseline-comparison.xml.
See aka.ms/dotnet/prebuilts for guidance on what pre-builts are and how to eliminate them.
Package IDs are:
NuGet.Frameworks.6.5.0

I would have assumed this PR #4532 or this one #4512 to be causing an issue but not this bump.

[MichaelSimons]

This package was recently cleaned up from SBRP because it is not being referenced in the full product build. We want SBRP to only contain the ref packages needed in the full product build not just the repo level source-builds. When vstest builds in the product source-build, it's NuGet version gets lifted to the latest because of the presence of a Versions.Details.xml dependency. When building the repo source-build leg, it uses the version declared in the repo because the rest of the product was not just built.

As a result this prebuilt should be added as an allowed prebuilt in https://github.com/microsoft/vstest/blob/main/eng/SourceBuildPrebuiltBaseline.xml.

[Evangelink]

@MichaelSimons Thanks for the information! As requested in the past, please review the change.