Test docker in CI pipeline

.github/workflows/ci.yaml

@@ -42,3 +42,33 @@ jobs:
         run: |
           # -n0 disables parallel tests for more stability
           pytest -n0
+
+  docker:
+    runs-on: ubuntu-latest
+    needs:
+      - test
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: |
+            datacontract/cli
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Build and push
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          # linux/arm64 is disabled
+          # duckdb currently does not support linux_arm64_gcc4
+          # https://duckdb.org/docs/extensions/working_with_extensions#platforms
+          platforms: linux/amd64,linux/arm64
+          push: false