chore: update changelogs for release 2.4.0

[jfcalvo]

Description

Adding some updates for our CHANGELOG.md for release 2.4.0

Type of change

• Documentation update

How Has This Been Tested

• Rendering markdowns 😄

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/)

[jfcalvo]

@frascuchon feel free of adding missing stuff on the SDK changelog.

[github-actions]

The URL of the deployed environment for this PR is https://argilla-quickstart-pr-5650-ki24f765kq-no.a.run.app

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.23%. Comparing base (2ab08ab) to head (c04c9e3).
Report is 1 commits behind head on releases/2.4.0.

Additional details and impacted files

@@                Coverage Diff                 @@
##           releases/2.4.0    #5650      +/-   ##
==================================================
- Coverage           91.24%   91.23%   -0.02%     
==================================================
  Files                 150      150              
  Lines                6250     6250              
==================================================
- Hits                 5703     5702       -1     
- Misses                547      548       +1     

Flag	Coverage Δ
argilla-server	91.23% <ø> (-0.02%)	⬇️

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