[repo] Bump Microsoft.SourceLink.GitHub to 8.0.0

[Kielek]

Fixes N/A
Design discussion issue N/A

Changes

Bump Microsoft.SourceLink.GitHub to 8.0.0

I am playing locally with OTel Exporter package directly included into AutoInstrumentation project and I have some conficts.
There should be no problem with this upgrade as it is fully internal package. Contrib already references this version.

Merge requirement checklist

• CONTRIBUTING guidelines followed (license requirements, nullable enabled, static analysis, etc.)
• [ ] Unit tests added/updated
• [ ] Appropriate CHANGELOG.md files updated for non-trivial changes
• [ ] Changes in public API reviewed (if applicable)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.19%. Comparing base (6250307) to head (9dc1810).
Report is 274 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5728      +/-   ##
==========================================
+ Coverage   83.38%   86.19%   +2.81%     
==========================================
  Files         297      254      -43     
  Lines       12531    11057    -1474     
==========================================
- Hits        10449     9531     -918     
+ Misses       2082     1526     -556     

Flag	Coverage Δ
unittests	?
unittests-Project-Experimental	86.11% <ø> (?)
unittests-Project-Stable	86.12% <ø> (?)
unittests-Solution	86.14% <ø> (?)
unittests-UnstableCoreLibraries-Experimental	85.86% <ø> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

see 197 files with indirect coverage changes

[CodeBlanch]

LGTM

[CodeBlanch]

@Kielek

I was just poking around the repo a bit to see if there were any significant changes. Noticed this:

Using Source Link in .NET projects

Starting with .NET 8, Source Link for the following source control providers is included in the .NET SDK and enabled by default:

• GitHub or GitHub Enterprise
• Azure Repos git repositories (formerly known as Visual Studio Team Services)
• GitLab 12.0+ (for older versions see GitLab settings)
• Bitbucket 4.7+ (for older versions see Bitbucket settings)

If your project uses .NET SDK 8+ and is hosted by the above providers it does not need to reference any Source Link packages or set any build properties.

Link: https://github.com/dotnet/sourcelink/blob/main/README.md#using-source-link-in-net-projects

Looks like we might be able to just remove this package/ref? I figured fine to merge the bump and then we can look at that separately.

[Kielek]

@CodeBlanch, what's about packages targeted also to .NET Framework? Will it be working without this reference? I have seen this message, but do not found information about this compatibility.