fix: enable auto offset committing

[rkrishn7]

Description

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Type of change

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• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration.

• Test A
• Test B

Checklist:

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• I have performed a self-review of my own code and ensured it adheres to the project guidelines and coding standards.
• I have commented my code, particularly in hard-to-understand areas.
• I have made corresponding changes to the documentation, if applicable.
• My changes generate no new warnings or errors.
• I have added tests that prove my fix is effective or that my feature works.
• Integration tests have been added for relevant changes.
• Any dependent changes have been merged and published in downstream modules.

Additional context

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[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 62.9%. Comparing base (bb1ef3e) to head (1dc5ca6).

Additional details and impacted files

Files	Coverage Δ
src/kiwi/src/source/kafka.rs	3.7% <0.0%> (ø)