chore(deps): update actions/checkout action to v6

Author: renovate[bot]

.github/workflows/nodejs.yml

@@ -18,7 +18,7 @@ jobs:
                 node-version: [14.x]
 
         steps:
-            - uses: actions/checkout@v3
+            - uses: actions/checkout@v6
             - name: Use Node.js ${{ matrix.node-version }}
               uses: actions/setup-node@v3
               with: