Merge pull request 'Update actions/checkout action to v4' (#6) from renovate/actions-checkout-4.x into main

Reviewed-on: #6

.forgejo/workflows/deploy.yaml

@@ -9,7 +9,7 @@ jobs:
     container:
       image: node:16-bullseye # Required by actions/checkout and actions/upload-artifact
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install dependencies
         run: npm install
       - name: Build