Fix Nodeバージョンの変更

.github/workflows/ci.yml

@@ -9,10 +9,10 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v3
-      - name: Set Node.js 18.x
+      - name: Set Node.js 16.x
         uses: actions/setup-node@v3
         with:
-          node-version: 18.x
+          node-version: 16.x
       - name: ci
         run: yarn install --immutable --immutable-cache --check-cache
       - name: ESLint