chore(ci): add PHP 8.4 to test matrix

Author: fontebasso

.github/workflows/tests.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        php: ['8.1', '8.2', '8.3']
+        php: ['8.1', '8.2', '8.3', '8.4']
         stability: ['prefer-lowest', 'prefer-stable']
         laravel: ['^10.0', '^11.0', '^12.0']
         exclude: