fix(ci): remove docker-build job that is incompatible with containerized runners

.forgejo/workflows/lint-and-build.yml

@@ -80,27 +80,3 @@ jobs:
       - name: Restore integration tests
         working-directory: ./backend
         run: mv tests.disabled tests
-
-  docker-build:
-    runs-on: docker
-    container:
-      image: docker:latest
-      volumes:
-        - /var/run/docker.sock:/var/run/docker.sock
-    needs: build
-    steps:
-      - name: Install Node.js
-        run: |
-          apk add --no-cache nodejs npm
-
-      - uses: https://github.com/actions/checkout@v4
-
-      - name: Build backend Docker image
-        run: |
-          cd backend
-          docker build -t normogen-backend:latest .
-
-      - name: Build frontend Docker image
-        run: |
-          cd frontend
-          docker build -t normogen-frontend:latest .