Add workflow for automatically rebasing open PRs (#2612)
Add workflow for automatically rebasing open PRs (#2612)

Introduce a workflow that's reponsible for automatically rebasing open
PRs when a commit has landed in the default (e.g. master) branch. Ensure
a comment is posted on that PR when the rebasing action job has failed.

Signed-off-by: timflannagan <94c8c56cb3e3c35b9b75806bbeaebee9ba64af5c@gmail.com>
operator-framework/operator-lifecycle-manager,operator-framework/operator-lifecycle-manager