upgrade actions/ (#31)

Author: keradus

.github/workflows/ci.yaml

@@ -8,7 +8,7 @@ jobs:
   analyse:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: shivammathur/setup-php@v2
         with:
           php-version: '8.1'
@@ -41,7 +41,7 @@ jobs:
           - php-version: '8.4'
           - php-version: '8.5'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: shivammathur/setup-php@v2
         with:
           php-version: ${{ matrix.php-version }}