[BT-6711][RADIUS] fix bug

modules/HTTP_Server/http_server.c

@@ -167,7 +167,7 @@ typedef enum
     MAX_RS_AUTH_STATE
 } rs_auth_state_t;
 static uint8_t auth_flag = RS_AUTH_READY;
-static char sendAuthBuf[300];
+static char sendAuthBuf[500];
 #endif
 /**
   * @brief  Общая структура настроек