fix: lock adding to tailnet waitgroup to avoid race (and fix flake)#14195

ethanndickson merged 1 commit intomaincoder/coder:mainfrom

08-07-fix_lock_adding_to_tailnet_waitgroup_to_avoid_race_and_fix_flake_coder/coder:08-07-fix_lock_adding_to_tailnet_waitgroup_to_avoid_race_and_fix_flake_Copy head branch name to clipboard