chore(deps): update actions/checkout action to v5

Author: renovate[bot]

.github/workflows/lint.yml

@@ -7,7 +7,7 @@ jobs:
     name: Coding Standard
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v5
       - name: Setup PHP 8.4
         uses: shivammathur/setup-php@v2
         with:

.github/workflows/tests.yml

@@ -16,7 +16,7 @@ jobs:
     name: Tests (PHP ${{ matrix.php }} - ${{ matrix.deps }})
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v5
       - name: Setup PHP ${{ matrix.php }}
         uses: shivammathur/setup-php@v2
         with: