Update actions/checkout action to v5

Author: renovate[bot]

.github/workflows/test.yml

@@ -21,7 +21,7 @@ jobs:
                 php-versions: [ '8.3', '8.4' ]
                 composer-flags: [ '', '--prefer-lowest' ]
         steps:
-            -   uses: actions/checkout@v4
+            -   uses: actions/checkout@v5
 
             -   name: Setup PHP
                 uses: shivammathur/setup-php@v2
@@ -42,7 +42,7 @@ jobs:
         name: PHP coverage
         runs-on: ubuntu-latest
         steps:
-            -   uses: actions/checkout@v4
+            -   uses: actions/checkout@v5
             -   name: Setup PHP
                 uses: shivammathur/setup-php@v2
                 with:
@@ -62,7 +62,7 @@ jobs:
         name: Quality checks
         runs-on: ubuntu-latest
         steps:
-            -   uses: actions/checkout@v4
+            -   uses: actions/checkout@v5
 
             -   name: Setup PHP
                 uses: shivammathur/setup-php@v2