Merge pull request #2 from phpcq/dependabot/github_actions/actions/checkout-4

github-actions(deps): bump actions/checkout from 2 to 4

Author: dmolineus

.github/workflows/diagnostics.yml

@@ -33,7 +33,7 @@ jobs:
             phpcq_install: 'update'
     steps:
       - name: Pull source
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Setup PHP with PECL extension
         uses: shivammathur/setup-php@v2