Fix ci to check code format in ci

Author: tmdghks

.github/workflows/ci.yml

@@ -47,4 +47,4 @@ jobs:
         run: yarn run lint
 
       - name: Run prettier
-        run: yarn run prettier
+        run: yarn run prettier:check

package.json

@@ -9,6 +9,7 @@
     "start": "next start",
     "lint": "next lint",
     "prettier": "npx prettier --config ./.prettierrc --write **/*.{ts,tsx}",
+    "prettier:check": "npx prettier --config ./.prettierrc --check **/*.{ts,tsx}",
     "test": "jest",
     "test:watch": "jest --watch"
   },