chore: update workflow for docker build and publish

.github/workflows/docker_release.yml

@@ -0,0 +1,27 @@
+name: Build and Push Docker Image on Release
+
+on:
+    release:
+        types: [published]
+
+jobs:
+    release:
+        runs-on: ubuntu-latest
+
+        steps:
+            - name: Checkout code
+              uses: actions/checkout@v2
+
+            - name: Login to DockerHub
+              uses: docker/#-action@v1
+              with:
+                  username: ${{ secrets.DOCKER_USERNAME }}
+                  password: ${{ secrets.DOCKER_PASSWORD }}
+
+            - name: Extract release tag name
+              run: echo "RELEASE_VERSION=${GITHUB_REF#refs/tags/}" >> $GITHUB_ENV
+
+            - name: Build and Push Docker Image
+              run: |
+                  docker build -t mariusbegby/cadence:${{ env.RELEASE_VERSION }} .
+                  docker push mariusbegby/cadence:${{ env.RELEASE_VERSION }}