update github actions

.github/workflows/python-app.yml

@@ -39,3 +39,28 @@ jobs:
       - name: Run Flask tests
         run: |
           poetry run pytest
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: [3.11]
+        poetry-version: [1.4]
+        os: [ubuntu-latest]
+    runs-on: ${{ matrix.os }}
+    if: github.ref == 'refs/heads/main' || github.ref == 'refs/heads/develop'
+    needs: tests
+    steps:
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+      - name: Login to Docker Hub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      - name: Build and push
+        uses: docker/build-push-action@v4
+        with:
+          push: true
+          tags: simple2b/open-law-dev:latest