Cosine Similarity Multi Shard Testing

[MrFlap]

Description

Adds testing for multi shard cosine similarity.

Related Issues

Adds more general integration tests to PR #2974

Check List

• New functionality includes testing.
• New functionality has been documented.
• API changes companion pull request created.
• Commits are signed per the DCO using --signoff.
• Public documentation issue/PR created.

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[0ctopus13prime]

Overall looks good.
But could you add the suffix "IT" for each case? I think your added test cases are not being running.
Also please ensure add 'test' as a prefix for the testing method to make sure have it executed.

[navneet1v]

@MrFlap can we fix the merge conflicts

[navneet1v]

@MrFlap can we fix the merge conflicts

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.47%. Comparing base (8a09fbc) to head (2966982).

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #2977   +/-   ##
=========================================
  Coverage     82.47%   82.47%           
  Complexity     3825     3825           
=========================================
  Files           414      414           
  Lines         14315    14315           
  Branches       1828     1828           
=========================================
  Hits          11806    11806           
  Misses         1754     1754           
  Partials        755      755           

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