Merge pull request #44 from PHPCompatibility/dependabot/github_actions/actions/checkout-6.0.0

GH Actions: Bump actions/checkout from 5.0.1 to 6.0.0

Author: jrfnl

.github/workflows/reusable-validate.yml

@@ -18,7 +18,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
         with:
           persist-credentials: false