CI: Run pre-commit gh action on only changed files (#39505)

Resolves : GH38862

Since pre-commit in comment-bot runs on all files,
it's a bit slow. Running it only on diff should
speed it up significantly.

Author: gunjan-solanki

.github/workflows/comment_bot.yml

@@ -29,7 +29,7 @@ jobs:
       - name: Install-pre-commit
         run: python -m pip install --upgrade pre-commit
       - name: Run pre-commit
-        run: pre-commit run --all-files || (exit 0)
+        run: pre-commit run --from-ref=origin/master --to-ref=HEAD --all-files || (exit 0)
       - name: Commit results
         run: |
           git config user.name "$(git log -1 --pretty=format:%an)"