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

[David Spickett via llvm-commits]

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@@ -654,7 +654,7 @@ def pr_request_review(self, pr: github.PullRequest.PullRequest):
                 for review in pull.get_reviews():
                     if review.state != "APPROVED":
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DavidSpickett wrote:

Btw f the greeter code looks strange, it's because there's a bug in GitHub. There's a long comment above that snippet to justify that. We have to check for every status *other than* the one we care about because GitHub never actually sets it. Fun :)

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