Update lint.yml

Author: K0IN

.github/workflows/lint.yml

@@ -10,6 +10,8 @@ jobs:
       - uses: actions/setup-node@v4
         with:
           node-version: 20
-      - run: npm run install
+      - run: npm install
+      - run: npm install
+        working-directory: ./frontend
       - run: npm run lint
       - run: npm run lint-frontend