Add PHP 8.4 to test CI job

Author: jnoordsij

.github/workflows/testing.yml

@@ -11,27 +11,27 @@ permissions:
 jobs:
     test:
         runs-on: ubuntu-latest
-        
+
         strategy:
             # if one job fails, abort the next ones too, because they'll probably fail - best to save the minutes
             fail-fast: false  # to change to: true
-          
+
             # run all combinations of the following, to make sure they're working together
             matrix:
                 # os: [ubuntu-latest, macos-latest, windows-latest]
-                php: ['8.1', '8.2', '8.3']
+                php: ['8.1', '8.2', '8.3', '8.4']
                 laravel: [^10.0, ^11.0]
                 dbal: [^3.0]
                 phpunit: [10.*]
-                dependency-version: [stable] # to add: lowest 
+                dependency-version: [stable] # to add: lowest
                 exclude:
                     -   laravel: "^11.0"
                         php: "8.1"
                         dbal: "^3.0"
 
 
         name: PHP ${{ matrix.php }}, Laravel ${{ matrix.laravel }}, PHPUnit ${{ matrix.phpunit }}, DBAL ${{ matrix.dbal }} --prefer-${{ matrix.dependency-version }}
-        
+
         steps:
             -   name: Checkout code
                 uses: actions/checkout@v4