chore: bump up actions/setup-node action to v6

Author: renovate[bot]

.github/workflows/CI.yml

@@ -27,7 +27,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - name: Setup node
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: 24
           cache: yarn
@@ -92,7 +92,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - name: Setup node
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: 24
           cache: yarn
@@ -213,7 +213,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - name: Setup node
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: ${{ matrix.node }}
           cache: yarn
@@ -250,7 +250,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - name: Setup node
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: ${{ matrix.node }}
           cache: yarn
@@ -307,7 +307,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - name: Setup node
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: 24
           cache: yarn
@@ -342,7 +342,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - name: Setup node
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: 24
           cache: yarn