chore(deps): update actions/setup-node action to v6

Author: renovate[bot]

.github/workflows/check_pr.yml

@@ -11,7 +11,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: 24
           cache: 'npm'
@@ -20,7 +20,7 @@ jobs:
           corepack enable &&
           corepack install # use the in-repo yarn version
       - name: Setup Node.js with yarn in cache
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: 24
           cache: 'yarn'

.github/workflows/test.yml

@@ -17,7 +17,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: 24
           cache: 'npm'
@@ -26,7 +26,7 @@ jobs:
           corepack enable &&
           corepack install # use the in-repo yarn version
       - name: Setup Node.js with yarn in cache
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: 24
           cache: 'yarn'