re-add cla script and add comment

Author: jaydeluca

.github/workflows/overhead-benchmark-daily.yml

@@ -51,8 +51,12 @@ jobs:
       - name: Copy results back to gh-pages branch
         run: rsync -avv benchmark-overhead/results/ gh-pages/benchmark-overhead/results/ && rm -rf benchmark-overhead/results
 
+      - name: Use CLA approved bot
+        run: .github/scripts/use-cla-approved-bot.sh
+
       - name: Commit updated results
         working-directory: ./gh-pages
+        # The git config from use-cla-approved-bot.sh is lost when switching working-directory
         run: |
           git config user.name otelbot
           git config user.email [email protected]