[client] ssh: fix #5345 by implementing PTY support in executor and removing setsid wrapper#5382

pieterhollander wants to merge 5 commits intonetbirdio:mainnetbirdio/netbird:mainfrom

pieterhollander:fix/ssh-executor-pty-supportpieterhollander/netbird:fix/ssh-executor-pty-supportCopy head branch name to clipboard