add a hold label when PRs are pushed to branch other than main #1570
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What type of PR is this?
/kind cleanup
What this PR does / why we need it:
recently, a PR was merged by mistake to release 1.0 branch.
As a result, the maintainers team decided to have automated marking of such PRs (that are targeting branch other than main), with an appropriate hold label.
This PR adds hold labels, making sure the maintainers team doesn't miss it if it happens again.
Which issue(s) this PR fixes:
Fixes #1562
Does this PR introduce a user-facing change?: