Fix WSA protocol info cleanup in request shutdown

- Add zend_hash_clean() in PHP_RSHUTDOWN_FUNCTION to cleanup wsa_info
- Ensures all WSA HANDLE resources are properly closed at end of request
- Prevents resource leak when socket_wsaprotocol_info_release() is not called

Author: EdmondDantes

ext/sockets/sockets.c

@@ -546,6 +546,10 @@ static PHP_RSHUTDOWN_FUNCTION(sockets)
 		SOCKETS_G(strerror_buf) = NULL;
 	}
 
+#ifdef PHP_WIN32
+	zend_hash_clean(&SOCKETS_G(wsa_info));
+#endif
+
 	return SUCCESS;
 }
 /* }}} */