[REFACTOR] argilla-server: remove deprecated records endpoint

[frascuchon]

Description

This PR removes deprecated endpoints working with records to avoid creating records with a proper record status computation. The affected endpoints are:

POST /api/v1/datasets/:dataset_id/records
PATCH /api/v1/datasets/:dataset_id/records

Type of change

• 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)
• Refactor (change restructuring the codebase without changing functionality)
• Improvement (change adding some improvement to an existing functionality)
• Documentation update

How Has This Been Tested

Checklist

• I added relevant documentation
• I followed the style guidelines of this project
• I did a self-review of my code
• I made corresponding changes to the documentation
• I confirm My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• I have added relevant notes to the CHANGELOG.md file (See https://keepachangelog.com/)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.25%. Comparing base (b15de8f) to head (6271865).

Additional details and impacted files

@@                               Coverage Diff                                @@
##           feat/add-dataset-automatic-task-distribution    #5206      +/-   ##
================================================================================
- Coverage                                         92.01%   91.25%   -0.76%     
================================================================================
  Files                                               137      137              
  Lines                                              5901     5823      -78     
================================================================================
- Hits                                               5430     5314     -116     
- Misses                                              471      509      +38     

Flag	Coverage Δ
argilla-server	91.25% <100.00%> (-0.76%)	⬇️

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