Add Linux and Android support for ProcessStartInfo.KillOnParentExit using prctl(PR_SET_PDEATHSIG)#127112

adamsitnik merged 17 commits into

maindotnet/runtime:mainfrom

copilot/extend-kill-on-parent-exit-linuxdotnet/runtime:copilot/extend-kill-on-parent-exit-linuxCopy head branch name to clipboard