Bump setup-node action to v4 (#729)

Author: cbnuleehyunwoo

.github/workflows/ci.yml

@@ -43,7 +43,7 @@ jobs:
       - name: Checkout Repository
         uses: actions/checkout@v4
       - name: "Set up Node ${{ matrix.node_version }}"
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node_version }}
           cache: "yarn"