Update update_dependencies.yml

Author: mucsi96

.github/workflows/update_dependencies.yml

@@ -22,6 +22,8 @@ jobs:
         uses: actions/checkout@v4
       - name: Setup node
         uses: actions/setup-node@v4
+        with:
+          node-version: 20
       # - env:
       #     LOG_LEVEL: debug
       - run: npx renovate --token ${{ secrets.GITHUB_TOKEN }} --platform github --autodiscover