Added cosine similarities to metadata for ProvenanceV0

[yadomkar]

This PR addresses issue #575, enhancing the validate_each_sentence and validate_full_text methods in the ProvenanceV0 validator to include cosine similarity values in the validation metadata, providing insights into how closely each sentence matches the source text

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 8 lines in your changes are missing coverage. Please review.

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Files	Patch %	Lines
guardrails/validators/provenance.py	0.00%	8 Missing :warning:

Additional details and impacted files

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##             main     #610   +/-   ##
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  Coverage        ?   81.80%           
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  Files           ?      118           
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  Hits            ?     5533           
  Misses          ?     1231           
  Partials        ?        0           

Flag	Coverage Δ
unittests	81.80% <0.00%> (?)

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[ShreyaR]

Thanks for creating the PR @yadomkar! Can you update the tests as well? You'll need to modify this test

[yadomkar]

@ShreyaR Thank you for the feedback! Currently, there doesn't seem to be existing test coverage for ProvenanceV0 that I could directly extend to include checks for the cosine similarity metadata. My changes were specifically for ProvenanceV0, and I haven't touched ProvenanceV1 as it uses a different method. Should I proceed with adding coverage for ProvenanceV0, or is there an existing suite I might have overlooked?

[github-actions[bot]]

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