Update workflows and dependabot config

Added npm and Docker support to dependabot.yml. Updated deploy and image workflows to use latest actions/checkout and set timeouts. Renamed and improved sync workflow to exclude docs and tests, and updated file copy logic.

.github/workflows/image.yml

@@ -40,6 +40,7 @@ env:
 jobs:
   build-and-push:
     runs-on: ubuntu-latest
+    timeout-minutes: 30
     permissions:
       contents: read
       packages: write
@@ -48,7 +49,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3