Update actions/checkout digest to eef6144

Author: renovate[bot]

.github/workflows/ci.yml

@@ -33,7 +33,7 @@ jobs:
     timeout-minutes: 10
     steps:
       - name: Checkout code
-        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
+        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
 
       - name: Setup PHP
         uses: shivammathur/setup-php@2.22.0