Bedevere no longer comments on PRs that break stable buildbots

[tiran]

Bedevere used to comment on PRs that break stable buildbots, e.g. python/cpython#17975 (comment) .

It seems like the feature no longer works. For example PR python/cpython#94549 broke four stable WebAssembly buildbots but bedever-bot did not add a warning to the PR.

[Mariatta]

I think there's a different webhook for handling that. Try the https://github.com/python/buildmaster-config/ repo.

[pablogsal]

I will fix it when I am back home, but I think the problem is that the regular expression to identify the issue was updated to check for GH- but the commit that was merged had "gh-". We need to add ignorecase after checking that this is indeed the problem.