ci(publish): build and publish image to dockerhub on release

Signed-off-by: Radek Ježek <[email protected]>

.github/workflows/publish-release-image.yml

@@ -0,0 +1,29 @@
+name: build and publish release image
+
+on:
+  # On release events (also when a published release is converted from/to prerelease), push all patterns
+  release:
+    types: [released, prereleased]
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: iambeeagent/bee-api:${{ github.event.release.tag_name }}