feat(workflow): add heroku cd workflow

.github/workflows/cd_heroku.yml

@@ -0,0 +1,18 @@
+name: cd-heroku
+
+on:
+  release:
+    types: [published]
+  workflow_dispatch: {}
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: akhileshns/heroku-deploy@v3.12.12 # This is the action
+        with:
+          heroku_api_key: ${{secrets.HEROKU_API_KEY}}
+          heroku_app_name: "hexxa-quickshare"
+          heroku_email: "hexxa@outlook.com"
+          usedocker: true