feat: Support graceful job step cancellation (#2714)

* feat: Support graceful job step cancellation

* for gh-act-runner
* act-cli support as well
* respecting always() and cancelled() of steps

* change main

* cancel startContainer / gh cli / bugreport early

* add to watch as well

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Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>