chore: publish image to Dockerhub

Author: StewartJingga

.github/workflows/build.yml

@@ -18,6 +18,11 @@ jobs:
         registry: docker.pkg.github.com
         username: ${{ github.actor }}
         password: ${{ secrets.GITHUB_TOKEN }}
+    - name: Login to DockerHub
+      uses: docker/login-action@v1
+      with:
+        username: ${{ secrets.DOCKERHUB_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_TOKEN }}
     - name: Build and push
       id: docker_build
       uses: docker/build-push-action@v2
@@ -26,5 +31,5 @@ jobs:
         tags: |
             docker.pkg.github.com/${{ github.repository }}/columbus:latest
             docker.pkg.github.com/${{ github.repository }}/columbus:${{ steps.get_version.outputs.version-without-v }}
-    - name: Image digest
-      run: echo ${{ steps.docker_build.outputs.digest }}
+            odpf/shield:latest
+            odpf/shield:${{ steps.get_version.outputs.version-without-v }}