SOL-112353: Start and termination of a RequestReplyMessagePublisher integration tests

[oodigie]

Changes:

• added some of the publisher termination integration tests
• added more test cases to cover publisher termination
• refactor: renamed the requestReplyPublisher variable in the integration tests to publisher

[cjwmorgan-sol]

There is some use of time.Sleep that should be addressed if possible. Or better rational to under stand it.
There are some questions as well. Likely means the test need better comments.
Git actions all pass and jenkins has no request reply failures.

[cjwmorgan-sol]

Changes look good to me.
gitactions and jenkins show no publisher failures.
This ready for merge.