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

Author: renovate[bot]

.github/workflows/test-and-release.yaml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-24.04
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
       - uses: actions/setup-node@v5
         with: