chore(ci): use renovate

.github/workflows/renovate.yml

@@ -0,0 +1,20 @@
+name: Renovate
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 12 * * 1"
+
+jobs:
+  renovate:
+    name: Renovate
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v6
+
+      - name: Run Renovate
+        uses: renovatebot/github-action@v42.0.2
+        with:
+          configurationFile: renovate.json
+          token: ${{ secrets.GH_REPO_TOKEN }}