feat: always deploy latest on merge to master

.github/workflows/build.yml

@@ -0,0 +1,26 @@
+---
+name: 'review-app'
+
+# yamllint disable-line rule:truthy
+on:
+  push:
+    branches:
+      - master
+      - main
+
+jobs:
+  review_app:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Cloning repo
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Push to dokku
+        uses: dokku/github-action@master
+        with:
+          git_remote_url: 'ssh://dokku@dokku.com/nginx-buildpack'
+          # specify `--force` as a flag for git pushes
+          git_push_flags: '--force'
+          ssh_private_key: ${{ secrets.SSH_PRIVATE_KEY }}