Fix deb build: use Docker container for isolated build environment

Author: rossigee

.github/workflows/deploy-image.yml

@@ -69,26 +69,20 @@ jobs:
           platforms: linux/amd64,linux/arm64
 
   build-and-publish-deb:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-latest
     needs: test
     if: startsWith(github.ref, 'refs/tags/v')
     steps:
       - name: Checkout repository
         uses: actions/checkout@v6
 
-      - name: Set up Python
-        uses: actions/setup-python@v6
-        with:
-          python-version: '3.12'
-
-      - name: Install build dependencies
+      - name: Build deb in container
         run: |
-          sudo apt-get update -qq
-          sudo apt-get install -y dh-python python3-all debhelper build-essential fakeroot
-          pip install setuptools stdeb
-
-      - name: Build deb
-        run: make deb
+          docker run --rm -v $(pwd):/workspace -w /workspace ubuntu:22.04 bash -c "
+            apt-get update -qq && apt-get install -y python3 python3-pip dh-python python3-all debhelper build-essential fakeroot make
+            pip install setuptools stdeb
+            make deb
+          "
 
       - name: Upload deb to GitHub Release
         uses: softprops/action-gh-release@v3