If a PR is returning a 400 family code from GitHub, the PR has most likely been deleted. We shouldn't attempt to test such PRs.
<rdar://problem/102906047>
Pull request: https://github.com/WebKit/WebKit/pull/7072
Committed 257304@main (298c6a0c5b10): <https://commits.webkit.org/257304@main> Reviewed commits have been landed. Closing PR #7072 and removing active labels.