Unify dotnet/runtime on using Arcade -publish

[jkoritzinsky]

Fixes dotnet/source-build#4239

Replaces #100004

Current official build link: https://dev.azure.com/dnceng/internal/_build/results?buildId=2566438&view=results

[ViktorHofer]

Unfortunately this won't work because of https://github.com/dotnet/arcade/blob/31624193093a13f765ab5382509e693911264509/src/Microsoft.DotNet.Arcade.Sdk/tools/Build.proj#L98

You will notice this when you update this branch with latest main (which has an updated Arcade). You can fix this by adding an "Empty.proj" file which as the name says is empty and pass that in as a ProjectToBuild item.

[jkoritzinsky]

I wish there was a "restore toolset"-only option... I guess I'll add the empty.csproj. Really hate that pattern.

[jkoritzinsky]

I have an idea on how to avoid the empty.proj pattern. I'll try it out and see what happens.

[ViktorHofer]

Yeah that's more or less the same just without an additional project. You are now also building the repo tasks unnecessarily but that should be fine.

[ViktorHofer]

D:\a_work\1\s.packages\microsoft.dotnet.arcade.sdk\10.0.0-beta.24511.1\tools\Publish.proj(310,5): error MSB4044: The "PublishSymbols" task was not given a value for the required parameter "PersonalAccessToken".

[jkoritzinsky]

Looks like we have some repeated assets from the productVersion.txt files. I'll figure out a solution tomorrow.

[ViktorHofer]

The official build succeeded. Merging to unblock dotnet/sdk#44014.

We can follow-up on whether the main branch should sign everything (real) or not in a follow-up.