Update actions/checkout action to v5 (#54)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/quality-assurance.yml

@@ -16,7 +16,7 @@ jobs:
       matrix:
         php-version: [8.1]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: shivammathur/setup-php@v2
         with:
           php-version: ${{ matrix.php-version }}
@@ -29,7 +29,7 @@ jobs:
       matrix:
         php-version: [8.1, 8.2]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: shivammathur/setup-php@v2
         with:
           php-version: ${{ matrix.php-version }}