[Enhancement]: check the return code from the set_connectivity_service_port function

[bieryAtFnal]

Description

It seems like it would be a good idea to check whether the call to set_connectivity_service_port succeeded in integrationtest_drunc.py and react accordingly if it didn't.

Potential impact radius

Small/Isolated

Reason for change

I suspect that at the moment, if the set_connectivity_service_port script fails, the running of integrationtests continues, and users may not notice that there was a problem. It would be good to alert users of problems.

Suggested implementations

TBD

Testing suggestions

Once we add error checking, we can locally modify to code to return an error and see the error message(s) that users will set.

Anything else?

No response