Make sure DocFX warning check step only executed in PR - #5674

Make sure DocFX warning check step only executed in PR#5674

Arkatufus merged 2 commits into

akkadotnet:devakkadotnet/akka.net:devfrom

Arkatufus:Fix_DocFX_warning_checkArkatufus/akka.net:Fix_DocFX_warning_checkCopy head branch name to clipboard