Function recover_killed_execution_with_delay 

pub fn recover_killed_execution_with_delay<R: CommandRunner + ?Sized>(
    store: &ExecutionStore,
    execution_id: &str,
    facts: &RecoveryFacts,
    runner: &R,
    start_watcher: WatcherStarter<'_>,
    delay: &RecoveryDelayHooks<'_>,
) -> RecoveryOutcome

recover_killed_execution after the random --on-kill-resume-delay wait (issue #181), with injectable randomness and sleep.