Prevent multiple Github status-bubble comments per commit. This can happen because of multiple buildbot builds starting at same time when a PR is created.
Pull request: https://github.com/WebKit/WebKit/pull/3264
Committed 253390@main (10816b77b5c3): <https://commits.webkit.org/253390@main> Reviewed commits have been landed. Closing PR #3264 and removing active labels.
<rdar://problem/98585474>