rebase and merge - add sleep (#85420)
not a fan of this solution, so if anyone has better ideas please tell me
add a sleep between the tryrebase.py and trymerge.py scripts so that github has time to get the push and start workflows, and so that we dont get weird event orders like https://github.com/pytorch/pytorch/pull/85267 where the push from the rebase looks like its after the merge
Pull Request resolved: https://github.com/pytorch/pytorch/pull/85420
Approved by: https://github.com/malfet, https://github.com/ZainRizvi
