feat: github Action의 맞는 새로운 appspec.yml을 구현 (CC-134)

.github/workflows/appspec.yml

@@ -11,6 +11,6 @@ jobs:
       - name: Set up Node.js
         uses: actions/setup-node@v2
         with:
-          node-version: "14"
+          node-version: "20.15.0"
       - run: npm install
       - run: npm test