Update actions/setup-node action to v6

Author: renovate[bot]

.github/workflows/frontend.yml

@@ -10,7 +10,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
       - name: Set up node
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v6
         with:
           cache: yarn
           cache-dependency-path: yarn.lock
@@ -24,7 +24,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
       - name: Set up node
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v6
         with:
           cache: yarn
           cache-dependency-path: yarn.lock