chore: cover the package with tests at PHP 8.4

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>

Author: vitormattos

.github/workflows/phpunit.yml

@@ -38,7 +38,7 @@ jobs:
 
     strategy:
       matrix:
-        php-versions: [8.1, 8.2, 8.3]
+        php-versions: [8.1, 8.2, 8.3, 8.4]
 
     name: PHP ${{ matrix.php-versions }}