CI update

as I've been using them for a year, ig

.forgejo/workflows/renovate.yml

@@ -0,0 +1,25 @@
+name: Renovate
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - 'master'
+  schedule:
+    - cron: '0 0 */2 * *'
+  
+jobs:
+  rennovate:
+    runs-on: alpine
+    container:
+      image: git.dzuchun.ing/actions/renovate:latest
+    steps:
+      - name: Checkout code
+        uses: https://git.dzuchun.ing/actions/checkout@v1
+
+      - name: Run renovate
+        run: renovate
+        env: 
+          RENOVATE_REPOSITORIES: ${{ forgejo.repository }}
+          RENOVATE_TOKEN: ${{ secrets.RENOVATE_TOKEN }}
+          RENOVATE_GITHUB_COM_TOKEN: ${{ secrets.RENOVATE_GITHUB_TOKEN }}