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

• [x] 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[bot]]

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

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

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

```diff @@ 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](https://app.codecov.io/gh/argilla-io/argilla/pull/5650/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=argilla-io) | Coverage Δ | | |---|---|---| | [argilla-server](https://app.codecov.io/gh/argilla-io/argilla/pull/5650/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=argilla-io) | `91.23% <ø> (-0.02%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=argilla-io#carryforward-flags-in-the-pull-request-comment) to find out more.

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