Update versions of diagnostics dependencies

[NikolaMilosavljevic]

Fixes: dotnet/source-build#2970

Updates version of diagnostics dependency for source-build and related package versions.

[NikolaMilosavljevic]

@Haplois I'm not able to add reviewers. Can you review this PR and add the Source-build devs? @MichaelSimons , @lbussell

[Haplois]

@NikolaMilosavljevic, I can’t add them as reviewers since they don’t have write access I think. Would you like me to merge this PR?

[NikolaMilosavljevic]

@NikolaMilosavljevic, I can’t add them as reviewers since they don’t have write access I think. Would you like me to merge this PR?

Yes, thank you!

[NikolaMilosavljevic]

@Haplois, I see that this change flowed to dotnet/SDK, but to the main branch. It is not being picked up by Maestro for 7.0.1xx update. Should we backport this change to a different microsoft/vstest branch, for this to happen? Or, should I backport this change in dotnet/sdk to a different sdk branch (i.e. release/7.0.1xx): dotnet/sdk#27524

[NikolaMilosavljevic]

@Haplois, I see that this change flowed to dotnet/SDK, but to the main branch. It is not being picked up by Maestro for 7.0.1xx update. Should we backport this change to a different microsoft/vstest branch, for this to happen? Or, should I backport this change in dotnet/sdk to a different sdk branch (i.e. release/7.0.1xx): dotnet/sdk#27524

I've chosen to backport the dependency update, with: dotnet/sdk#27541 - thanks for the review!