Analyzers/BuildCheck stabilization for NET 9.0

[JanKrivanek]

Context

MSBuild analyzers are going to be shipped as opt-in preview feature in NET 9. Since we are in late stage of NET 9 cycle, we should now shift focus from feature development to stabilization - testing, dogfooding and bugfixing.

Objectives

• Dogfooding
  • [x] https://github.com/orgs/dotnet/projects/373?pane=issue&itemId=59805840
  • [x] Prepare test script and crowdsource team and vendors for testing
• Bugfixing
  • Pri 1
    • [x] https://github.com/dotnet/msbuild/issues/10176
    • [x] https://github.com/dotnet/msbuild/issues/10071
    • [x] https://github.com/dotnet/msbuild/issues/10131
    • [x] https://github.com/dotnet/msbuild/issues/10036
    • [x] https://github.com/dotnet/msbuild/issues/10429
    • [x] https://github.com/dotnet/msbuild/issues/10448
    • [x] https://github.com/dotnet/msbuild/issues/10475
  • Others
    • [ ] https://github.com/dotnet/msbuild/issues/10317
    • [x] https://github.com/dotnet/msbuild/issues/10431
    • [ ] https://github.com/dotnet/msbuild/issues/10387
    • [x] https://github.com/dotnet/msbuild/issues/10427
    • [ ] https://github.com/dotnet/msbuild/issues/10449
    • [ ] https://github.com/dotnet/msbuild/issues/10414