Update source-build team references

[MichaelSimons]

The @dotnet/source-build-internal team is being deprecated. All references to it were updated.

Included the renaming of SourceBuild.props to the new naming convention, DotNetBuild.props.

Related to dotnet/source-build#4645

Repo admins, can you please grant write access to @dotnet/source-build and remove any access granted to @dotnet/source-build-internal

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.50%. Comparing base (8c173ce) to head (451f502).
Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7448      +/-   ##
==========================================
- Coverage   96.50%   96.50%   -0.01%     
==========================================
  Files        1448     1448              
  Lines      346869   346869              
  Branches    11402    11402              
==========================================
- Hits       334739   334735       -4     
- Misses       9243     9246       +3     
- Partials     2887     2888       +1     

[MichaelSimons]

Gentle ping @dotnet/roslyn-analysis. Can you please make the requested permission changes so that this PR can be merged? TIA

Repo admins, can you please grant write access to @dotnet/source-build and remove any access granted to @dotnet/source-build-internal

[MichaelSimons]

@jaredpar - Can you help with permissions?

Repo admins, can you please grant write access to @dotnet/source-build and remove any access granted to @dotnet/source-build-internal

[jaredpar]

@MichaelSimons done