ci: added github action for deploying convex functions

.github/actions/setup/action.yml

@@ -0,0 +1,14 @@
+name: setup-action
+description: 'Setup Node.js ⚙️ - Install dependencies 🔧'
+
+runs:
+  using: 'composite'
+  steps:
+    - name: Install Node.js ⚙️
+      uses: actions/setup-node@v4
+      with:
+        node-version: 20
+
+    - name: Install dependencies 🔧
+      run: npm install
+      shell: bash

.github/workflows/convex.yml

@@ -0,0 +1,21 @@
+name: Deploy Convex
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code 🔄
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js ⚙️ - Install dependencies 🔧
+        uses: ./.github/actions/setup
+
+      - name: Deploy Convex 🚀
+        env:
+          CONVEX_DEPLOY_KEY: ${{ secrets.CONVEX_DEPLOY_KEY }}
+        run: npx convex deploy