chore(deps): update actions/checkout action to v4.2.1

Author: renovate[bot]

.github/workflows/test.yml

@@ -28,7 +28,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out the source code
-        uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
+        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4.2.1
 
       - name: Set up PHP
         uses: shivammathur/setup-php@c541c155eee45413f5b09a52248675b1a2575231 # 2.31.1