workflow file for cherry-pick on comment

[andyi2it]

What this PR does / why we need it:

This PR would allow cherry picking a PR and create a new PR on a target branch. Example, if a new critical fix was added to master, one can add a comment to cherry-pick to release-branch.
At this moment it is configured to allow only repo owner to cherry-pick.

Usage:

/cherry-pick release-branch

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #3656

Release note:

NONE

Re-running failed tests

• /rerun-all - rerun all failed workflows.
• /rerun-workflow <workflow name> - rerun a specific failed workflow. Only one workflow name can be specified. Multiple /rerun-workflow commands are allowed per comment.

[israel-hdez]

There is already a cherry-pick workflow: https://github.com/kserve/kserve/blob/master/.github/workflows/cherry-pick.yml
I see it as outdated. Maybe, we should replace/update that one instead of creating a new file?

[terrytangyuan]

This would be great to have.

[yuzisun]

@andyi2it Can you help add the instruction for how to cherry pick the commits to the release doc ?

[yuzisun]

There is already a cherry-pick workflow: https://github.com/kserve/kserve/blob/master/.github/workflows/cherry-pick.yml I see it as outdated. Maybe, we should replace/update that one instead of creating a new file?

This one does work not well, we can delete it

[spolti]

@andyi2it Can you help add the instruction for how to cherry pick the commits to the release doc ?

Maybe a small note in the [CONTRIBUTING.md](https://github.com/kserve/kserve/blob/master/CONTRIBUTING.md) as well

[yuzisun]

/lgtm
/approve

[oss-prow-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: andyi2it, yuzisun

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