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]

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 ⚠️
pkg/stream/environment.go	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            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     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.