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

Author: renovate[bot]

.github/workflows/status.yml

@@ -12,7 +12,7 @@ jobs:
     name: Validate
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
       with:
         # Checkout the head ref instead of the PR branch that github creates.
         ref: ${{ github.head_ref }}