[release/10.0.3xx] Fix dotnet test hang when the test app process exits but a child process of it remains alive#53321

Youssef1313 merged 13 commits intorelease/10.0.3xxdotnet/sdk:release/10.0.3xxfrom

backport/pr-52558-to-release/10.0.3xxdotnet/sdk:backport/pr-52558-to-release/10.0.3xxCopy head branch name to clipboard