[llvm] github-automation.py: Fix mis-indented statement (PR #149653)

[Aiden Grossman via llvm-commits]

https://github.com/boomanaiden154 approved this pull request.

Looks like this was last touched in f33e9276e2e2e34f7dd372f80612709e11d4b74f which introduced this code (without the indent) after the migration to phabricator. The original code had the behavior that this patch restores, so I think this makes sense.

Please make sure one of the release managers (Tobias/Tom) reviews this though given they are the ones this will actually be impacting.

https://github.com/llvm/llvm-project/pull/149653