🔒 修复安全，强转类型失败判断

pigx-common/pigx-common-gray/src/main/java/com/pig4cloud/pigx/common/gray/rule/GrayRoundRobinLoadBalancer.java

@@ -66,6 +66,10 @@ public class GrayRoundRobinLoadBalancer extends RoundRobinLoadBalancer {
 		}
 
 		DefaultRequestContext requestContext = (DefaultRequestContext) request.getContext();
+		if (!(requestContext.getClientRequest() instanceof RequestData)){
+			return super.choose(request).block();
+		}
+
 		RequestData clientRequest = (RequestData) requestContext.getClientRequest();
 		HttpHeaders headers = clientRequest.getHeaders();