[release/6.0] Respect the Keep-Alive response header on HTTP/1.0#73245

carlossanlop merged 4 commits intodotnet:release/6.0dotnet/runtime:release/6.0from

MihaZupan:backport-3b706dd67bd0d5a29a5bf1801e970b94e0d0f33e-6.0MihaZupan/runtime:backport-3b706dd67bd0d5a29a5bf1801e970b94e0d0f33e-6.0Copy head branch name to clipboard