Run Renovate via npm inside isolated build runner instead of nested docker

.gitea/workflows/renovate.yaml

@@ -7,14 +7,21 @@ on:
 
 jobs:
   renovate:
-    runs-on: deploy
+    runs-on: ubuntu-latest
     steps:
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: "22"
+
+      - name: Install Renovate
+        run: npm install -g renovate
+
       - name: Run Renovate
-        run: |
-          docker run --rm \
-            -e RENOVATE_PLATFORM=gitea \
-            -e RENOVATE_ENDPOINT="${{ gitea.server_url }}/api/v1/" \
-            -e RENOVATE_TOKEN="${{ secrets.RENOVATE_TOKEN }}" \
-            -e RENOVATE_REPOSITORIES="${{ gitea.repository }}" \
-            -e RENOVATE_ONBOARDING=false \
-            renovate/renovate
+        run: renovate
+        env:
+          RENOVATE_PLATFORM: gitea
+          RENOVATE_ENDPOINT: "${{ gitea.server_url }}/api/v1/"
+          RENOVATE_TOKEN: ${{ secrets.RENOVATE_TOKEN }}
+          RENOVATE_REPOSITORIES: "${{ gitea.repository }}"
+          RENOVATE_ONBOARDING: "false"