add back convex deploy

.github/workflows/deploy.yml

@@ -0,0 +1,23 @@
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    container:
+      image: node:20
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Install dependencies
+        run: npm i
+
+      - name: Deploy with Convex
+        env:
+          CONVEX_DEPLOY_KEY: ${{ secrets.CONVEX_DEPLOY_KEY }}
+        run: npx convex deploy