feat(deploy): add workflow to deploy to fly.io on push

Signed-off-by: Sphericalkat <amolele@gmail.com>

.github/workflows/deploy.yml

@@ -0,0 +1,12 @@
+name: Fly Deploy
+on: [push]
+env:
+  FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}
+jobs:
+  deploy:
+      name: Deploy to fly.io
+      runs-on: ubuntu-latest
+      steps:
+        - uses: actions/checkout@v3
+        - uses: superfly/flyctl-actions/setup-flyctl@master
+        - run: flyctl deploy --remote-only