chore(renovate): pin action to v40.3.0, fix inputs per spec

.github/workflows/e2e.yaml

@@ -21,4 +21,3 @@ jobs:
       node-version: '22'
       headlamp-version: v0.40.1
       e2e-namespace: headlamp-dev
-      plugin-name: tns-csi

.github/workflows/renovate.yml

@@ -0,0 +1,14 @@
+name: Renovate
+on:
+  schedule:
+    - cron: '0 3 * * *'
+  workflow_dispatch:
+jobs:
+  renovate:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: renovatebot/github-action@v40.3.0
+        with:
+          configurationFile: renovate.json
+          renovate-json5: true