fix(telemetry): pass name_ through CallData::clone()

Without this, cloned CallData instances (created for the next incoming
gRPC request) would have an empty name_, making subsequent span attrs
blank.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/xrpld/app/main/GRPCServer.cpp

@@ -82,7 +82,8 @@ GRPCServerImpl::CallData<Request, Response>::clone()
         forward_,
         requiredCondition_,
         loadType_,
-        secureGatewayIPs_);
+        secureGatewayIPs_,
+        name_);
 }
 
 template <class Request, class Response>