We were including checksums in addition to symbols.nupkgs by using Contains instead of EndsWith

…tnet/arcade dotnet/sourcelink (#12665)

[main] Update dependencies from dotnet/xliff-tasks dotnet/xharness dotnet/arcade dotnet/sourcelink

…0230219.1 (#12658)

[main] Update dependencies from dotnet/templating

…12680)

[main] Update dependencies from dotnet/xliff-tasks dotnet/sourcelink

* Set repo URL conditionally

* Set repo URL conditionally

* Allow override test logs default location

By default test logs are written under `$(ArtifactsLogDir)`. However, in
situations where there are too many test projects, the logs folder gets
innundated with files, making it difficult to explore (especially in CI).

Resolves #12485

* Update docs