fix: kill child process tree on timeout + heartbeat step 4 (GAL-739)#10

ADWilkinson wants to merge 2 commits intomainADWilkinson/oneshot-cli:mainfrom

oneshot/follow-the-instructions-in-oneshot-gal-7-1777423655046ADWilkinson/oneshot-cli:oneshot/follow-the-instructions-in-oneshot-gal-7-1777423655046Copy head branch name to clipboard