seek kafka improvements, CI fixed

[a1shadows]

Fixes Issue

• [x] Which issue or ticket was(will be) fixed in this PR? fixes #645, #633

PR Branch #ADD LINK TO THE PR BRANCH

Motivation and Context

Fixed issues in the CI where creation of multiple partition topics was not working correctly. Handled edge cases around the seek timestamp mechanism and added more tests to verify the same.

Checklist:

• [x] Unit tests added

• [x] Integration tests added

• [x] Test names are meaningful

• [x] Feature manually tested

• [ ] Branch build passed

• [x] No 'package.*' in the imports

• [ ] Relevant Wiki page updated with clear instruction for the end user

  • [ ] Not applicable. This was only a refactor change, no functional or behaviour changes were introduced

• [x] Http test added to http-testing module(if applicable) ?

  • [x] Not applicable. The changes did not affect HTTP automation flow

• [x] Kafka test added to kafka-testing module(if applicable) ?

  • [ ] Not applicable. The changes did not affect Kafka automation flow

[a1shadows]

@authorjapps Could you take a look at this?

[authorjapps]

@authorjapps Could you take a look at this?

Yep, will have a look soon. As always, thanks for taking a deeper look at the seek issue.