Build and publish docker image on release (#370)

Author: hazim-j

.github/workflows/docker.yml

@@ -1,26 +1,33 @@
-name: Build docker image
+name: Build and publish Docker image
 
-on: workflow_dispatch
+on:
+  release:
+    types: [published]
 
 jobs:
   docker:
     runs-on: ubuntu-latest
     steps:
+      - name: Set release version
+        run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
+
       - name: Set up QEMU
-        uses: docker/setup-qemu-action@v2
+        uses: docker/setup-qemu-action@v3
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
+        uses: docker/setup-buildx-action@v3
 
       - name: Login to Docker Hub
-        uses: docker/login-action@v2
+        uses: docker/login-action@v3
         with:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
+          username: ${{secrets.DOCKERHUB_USERNAME}}
+          password: ${{secrets.DOCKERHUB_TOKEN}}
 
       - name: Build and push
-        uses: docker/build-push-action@v4
+        uses: docker/build-push-action@v5
         with:
           platforms: linux/amd64,linux/arm64
           push: true
-          tags: stackupwallet/stackup-bundler:latest
+          tags: |
+            stackupwallet/stackup-bundler:latest
+            stackupwallet/stackup-bundler:${{env.RELEASE_VERSION}}