add_two_ints test sometimes fail in noetic

[knorth55]

!
the test relaxed in #738, but still fails

noetic test of current master branch has the test error.
https://github.com/jsk-ros-pkg/jsk_roseus/actions/runs/4011982812/jobs/6897751532
https://github.com/jsk-ros-pkg/jsk_roseus/actions/runs/4009339630/jobs/6884572252
https://github.com/jsk-ros-pkg/jsk_roseus/actions/runs/4006511947/jobs/6878129815

2023-01-26T14:02:21.8527332Z [roseus.rosunit-add_two_ints/test-add-two-ints-many][FAILURE]-------------------
2023-01-26T14:02:21.8527860Z Test:(or (< service-call-error 5) (= (+ (send req :a) (send req :b)) (send res :sum)))
2023-01-26T14:02:21.8528263Z Trace:"^[33m[6] integration failure (1130+4903400)=4904530(nil)/=0(nil)
2023-01-26T14:02:21.8528748Z ^[0mation failure (1092+80664777)=80665869(nil)/=0(nil)
2023-01-26T14:02:21.8529594Z ^[0m951"
2023-01-26T14:02:21.8530042Z Message:"integration failure 6 times ... (1130+4903400)=4904530(nil)/=0(nil)"
2023-01-26T14:02:21.8530726Z --------------------------------------------------------------------------------
2023-01-26T14:02:21.8531058Z 
2023-01-26T14:02:21.8531169Z 
2023-01-26T14:02:21.8531462Z [roseus.rosunit-add_two_ints/test-add-two-ints-many][FAILURE]-------------------
2023-01-26T14:02:21.8532066Z Test:(or (< service-call-error 5) (= (+ (send req :a) (send req :b)) (send res :sum)))
2023-01-26T14:02:21.8532502Z Trace:"^[33m[5] integration failure (1092+80664777)=80665869(nil)/=0(nil)
2023-01-26T14:02:21.8532824Z ^[0m951(nil)
2023-01-26T14:02:21.8533480Z taclass #X55a1a0f5b4b0 bignum&gt;)
2023-01-26T14:02:21.8534144Z ø_ö ¡U"
2023-01-26T14:02:21.8534842Z Message:"integration failure 5 times ... (1092+80664777)=80665869(nil)/=0(nil)"
2023-01-26T14:02:21.8535440Z --------------------------------------------------------------------------------
2023-01-26T14:02:21.8535710Z 
2023-01-26T14:02:21.8536098Z [roseus.rosunit-add_two_ints/test-add-two-ints-persistent-many][passed]
2023-01-26T14:02:21.8536319Z 

ref. #732

[knorth55]

Lets see if these merge commits can pass the tests.

https://github.com/jsk-ros-pkg/jsk_roseus/actions/runs/4002000216
https://github.com/jsk-ros-pkg/jsk_roseus/actions/runs/4006511947

[knorth55]

2023-01-27T13:48:06.0921645Z [roseus:make] �[0m�[32mRequesting 1073741824(nil) + 1073741823(nil) -> 2147483647(nil)
2023-01-27T13:48:06.0946602Z 
2023-01-27T13:48:06.0946610Z 
2023-01-27T13:48:06.0946930Z                                                                                 
2023-01-27T13:48:06.0947561Z [roseus:make] �[0m�[31m[ERROR] [1674827286.093384795]: attempted to call service  /add_two_ints, but failed �[0m
2023-01-27T13:48:06.0987746Z 
2023-01-27T13:48:06.0987754Z 
2023-01-27T13:48:06.0988092Z                                                                                 
2023-01-27T13:48:06.0988955Z [roseus:make] �[31m[ERROR] test (= (+ (send req :a) (send req :b)) (send res :sum)) failed ... (integration failure (1073741824+1073741823)=2147483647(nil)/=0(nil) ^[0mmRequesting 1073741824(nil) + 1073741823(nil) -> 2147483647(nil)
2023-01-27T13:48:06.0989651Z 
2023-01-27T13:48:06.0989783Z                                                                                 
2023-01-27T13:48:06.0990051Z [roseus:make] 93951(nil)

I found it is a bit odd that there is no error except attempted to call service /add_two_ints, but failed.

As code below, there are two more ros-error, deserializing and establishing errors,
but no error is printed in CI output.
🤔

jsk_roseus/roseus/roseus.cpp

Lines 1159 to 1190 in fa36ffd

	bool bSuccess = true;
	ros::SerializedMessage ser_req = ros::serialization::serializeMessage(request);
	ros::SerializedMessage ser_resp;
	if (link && link->isValid()) {
	bSuccess = link->call(ser_req, ser_resp);
	if ( bSuccess ) {
	try {
	ros::serialization::deserializeMessage(ser_resp, response);
	} catch (std::exception& e) {
	ROS_ERROR("Exception thrown while deserializing service call: %s", e.what());
	bSuccess = false;
	}
	boost::shared_ptr<map<string, string> >connection_header = link->getConnection()->getHeader().getValues();
	#if DEBUG
	cerr << __PRETTY_FUNCTION__ << endl;
	cerr << "c_header == " << connection_header << endl;
	for(map<string, string>::iterator it = connection_header->begin(); it != connection_header->end(); it++){
	cerr << " " << it->first << " : " << it->second << endl;
	}
	#endif
	response._connection_header = connection_header;
	StoreConnectionHeader(&response);
	link.reset();
	// If we're shutting down but the node haven't finished yet, wait until we do
	while (ros::isShuttingDown() && ros::ok()) {
	ros::WallDuration(0.001).sleep();
	}
	}
	} else {
	bSuccess = false;
	ROS_ERROR("Failed to establish connection to service server");
	}