Refactor consumer to use kafka_utils config in autoreduce_utils

[james0209]

Summary of work

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Additional comments

Fixes #xyz

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[codecov]

Codecov Report

Merging #1454 (d7d8417) into main (953ec68) will increase coverage by 0.33%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #1454      +/-   ##
==========================================
+ Coverage   89.50%   89.84%   +0.33%     
==========================================
  Files          17       17              
  Lines         829      827       -2     
==========================================
+ Hits          742      743       +1     
+ Misses         87       84       -3     

Flag	Coverage Δ
backend	89.84% <100.00%> (+0.33%)	⬆️

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Impacted Files	Coverage Δ
...utoreduce_qp/queue_processor/confluent_consumer.py	77.66% <100.00%> (+2.43%)	⬆️

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