Merge pull request #146 from voku/renovate/actions-checkout-6.x

Update actions/checkout action to v6

Author: voku

.github/workflows/ci.yml

@@ -27,7 +27,7 @@ jobs:
     timeout-minutes: 10
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup PHP
         uses: shivammathur/setup-php@2.37.0