Use a loop instead of recursion in the find_producer function

[gaborszita]

I changed the find_producer function in _ProducerList from a recursive implementation to an iterative one. As far as I know, recursion is not recommended in production code, especially when a simple iterative approach can achieve the same result.

[gaborszita]

made a mistake in my implementation, it is still recursive, closing for now

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.9%. Comparing base (5077c24) to head (2f2cf53).
Report is 9 commits behind head on development.

Additional details and impacted files

@@              Coverage Diff              @@
##           development    #467     +/-   ##
=============================================
+ Coverage         91.7%   91.9%   +0.3%     
=============================================
  Files               24      24             
  Lines             6403    6417     +14     
=============================================
+ Hits              5866    5892     +26     
+ Misses             537     525     -12     

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[gaborszita]

fixed

[fdxmw]

Thank you for cleaning this up!