Update matrix.json

Author: OSPanel

extension/BuildPhpExtension/config/matrix.json

@@ -1130,7 +1130,7 @@
             "8.1": "0.1.4",
             "8.2": "0.1.4",
             "8.3": "0.1.4",
-            "8.4": "0.1.4",
+            "8.4": "",
             "8.5": ""
         },
         "source": "https://pecl.php.net/get/simple_kafka_client"