Improve the ReliableProducer during the broker restart

[Gsantomaggio]

• add random sleep during the producer restart
• check the stream status during the restart
• add tests for the reliable producer

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 11.76471% with 30 lines in your changes are missing coverage. Please review.

Project coverage is 78.30%. Comparing base (3db652a) to head (9df2d7f). Report is 1 commits behind head on main.

Files	Patch %	Lines
pkg/ha/ha_publisher.go	0.00%	27 Missing :warning:
pkg/stream/environment.go	0.00%	3 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #268 +/- ## ========================================== - Coverage 80.01% 78.30% -1.72% ========================================== Files 18 19 +1 Lines 2677 2793 +116 ========================================== + Hits 2142 2187 +45 - Misses 384 447 +63 - Partials 151 159 +8 ```

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