fix(github-comments): fix logger (#51636)

Fixes https://sentry.sentry.io/issues/4271520367/?project=1

src/sentry/tasks/integrations/github/pr_comment.py

@@ -150,7 +150,7 @@ def create_or_update_comment(
 
     logger.info(
         "github.pr_comment.create_or_update_comment",
-        extra={"created": pr_comment is None, "pr_key": pr_key, "repo": repo.name},
+        extra={"new_comment": pr_comment is None, "pr_key": pr_key, "repo": repo.name},
     )