[main] Update dependencies from dotnet/sourcelink dotnet/xharness#7985

Merged

dotnet-maestro[bot] merged 2 commits intomainfrom

darc-main-8f11f9d0-c051-4382-a21d-8f46d33edc30

Oct 4, 2021

Commits on Oct 1, 2021

Update dependencies from https://github.com/dotnet/sourcelink build 20210930.2
dotnet-maestro[bot]
committed

Commits on Oct 4, 2021

Update dependencies from https://github.com/dotnet/xharness build 20211001.2
dotnet-maestro[bot]
committed