chore(deps): update actions/github-script action to v9

Author: renovate[bot]

.github/workflows/auto-merge-pr.yaml

@@ -18,7 +18,7 @@ jobs:
 
     steps:
       - name: Download PR metadata
-        uses: actions/github-script@v8
+        uses: actions/github-script@v9
         id: pr
         with:
           script: |