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

Author: renovate[bot]

.github/workflows/test.yml

@@ -10,7 +10,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3.6.0
+    - uses: actions/checkout@v6.0.2
     - uses: actions/setup-node@v3.9.1
       with:
          node-version: '14.21.3'