Bump actions/checkout from 5 to 6 in the actions group (#4213)

Author: dependabot[bot]

.github/workflows/node.js.yml

@@ -17,7 +17,7 @@ jobs:
         node-version: [20.x, 22.x, 24.x]
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Use Node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v6
       with: