Fixes port 6003 conflict between Go Pub-sub and Go bindings.

[paulyuk]

…issue

The timing of tests leads to conflict on port 6003

Please explain the changes you've made

Issue reference

Current failed tests for Go

Please reference the issue this PR will close: #[issue number]

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• The quickstart code compiles correctly
• You've tested new builds of the quickstart if you changed quickstart code
• You've updated the quickstart's README if necessary
• If you have changed the steps for a quickstart be sure that you have updated the automated validation accordingly. All of our quickstarts have annotations that allow them to be executed automatically as code. For more information see mechanical-markdown. For user guide with examples see Examples.

[msfussell]

Approve