add deployment script for next

Author: motatoes

.github/workflows/next_deploy.yml

@@ -0,0 +1,21 @@
+name: Fly Deploy
+on:
+  push:
+    branches:
+      - develop    # change to main if needed
+      - feat/next
+  pull_request:
+    branches:
+      - feat/next
+
+jobs:
+  deploy:
+    name: Deploy app
+    runs-on: ubuntu-latest
+    concurrency: deploy-group    # optional: ensure only one action runs at a time
+    steps:
+      - uses: actions/checkout@v4
+      - uses: superfly/flyctl-actions/setup-flyctl@master
+      - run: flyctl deploy --remote-only
+        env:
+          FLY_API_TOKEN: ${{ secrets.FLYIO_TOKEN }}