Merge pull request #7 from sasezaki/php84

Add PHP 8.4 to test matrix

Author: Jean85

.github/workflows/continuous-integration.yml

@@ -16,6 +16,7 @@ jobs:
           - 8.1
           - 8.2
           - 8.3
+          - 8.4
         dependency-levels:
           - 'highest'
         experimental: