Add some of the missing steps to deploy

Author: Phencys

.github/workflows/deploy_beta.yml

@@ -26,6 +26,9 @@ jobs:
           composer install
           npm i
           npm run build
+          cp .env.example .env
+          php artisan key:generate
+          php artisan migrate
       - name: Build and push
         uses: docker/build-push-action@v2
         with: