[DOP-22883] Add consumer-specific settings

[dolfinus]

Change Summary

• Add timeouts to Kafka settings class.
• Add class with consumer-specific configuration. This is mostly copy-paste from FastStream, default values remain unchanged.
• Create FastStream subscriber in consumer_factory instead of import time, as now options like topic names are passed via settings.

Related issue number

Checklist

• Commit message and PR title is comprehensive
• Keep the change as small as possible
• Unit and integration tests for the changes exist
• Tests pass on CI and coverage does not decrease
• Documentation reflects the changes where applicable
• docs/changelog/next_release/<pull request or issue id>.<change type>.rst file added describing change
  (see CONTRIBUTING.rst for details.)
• My PR is ready to review.

[codecov]

Codecov Report

Attention: Patch coverage is 89.36170% with 5 lines in your changes missing coverage. Please review.

Project coverage is 92.51%. Comparing base (06b4616) to head (a79537e).
Report is 123 commits behind head on develop.

Files with missing lines	Patch %	Lines
data_rentgen/consumer/settings/consumer.py	84.61%	2 Missing and 2 partials ⚠️
data_rentgen/consumer/settings/kafka.py	92.30%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #130      +/-   ##
===========================================
- Coverage    92.56%   92.51%   -0.05%     
===========================================
  Files          171      171              
  Lines         3750     3781      +31     
  Branches       260      262       +2     
===========================================
+ Hits          3471     3498      +27     
- Misses         219      221       +2     
- Partials        60       62       +2     

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