Create action to auto update a PR when destination branch is pushed

[gutiory]

This PR creates a Github Action that uses autoupdate to keep all opened PRs up-to-date whenever a push is done to the PR destination branch

[github-actions]

Kover Report

Total Project Coverage	44.33%

[serras]

Is there a way to restrict this to not auto-update arrow-2? That's a difficult thing to do most of the times, so it would be preferrable to always merge there by hand.

[nomisRev]

PR_FILTER: "ready_for_review"

@serras I guess this is only applied to ready for review PRs. So it would filter out arrow-2.

Looks great to me @gutiory! Thank you.

[gutiory]

PR_FILTER: "ready_for_review"

@serras I guess this is only applied to ready for review PRs. So it would filter out arrow-2.

Looks great to me @gutiory! Thank you.

Yes, you're right, @nomisRev. The draft PRs are out of the auto updates.
Anyway, @serras I've just created a new label that will skip a ready for review PR to auto update on every push.

[franciscodr]

Minor comment. Looks good to me!