Apply proper serializer when pushing feedback dataset in Argilla

[frascuchon]

Description

By default, the model.dict() method won't apply custom serialization to the UUID or datetatime fields. Since pydantic provides a .json method which applies serialization properly, we should use them in order to support pushing data in Argilla.

The current solution may be improved since we're serializing more times than needed. But for that, we should change the sdk.v1.api layer. See issue #3191

Closes #3189

Type of change

(Please delete options that are not relevant. Remember to title the PR according to the type of change)

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested

(Please describe the tests that you ran to verify your changes. And ideally, reference tests)

New tests have been added

Checklist

• I have merged the original branch into my forked branch
• I added relevant documentation
• follows the style guidelines of this project
• I did a self-review of my code
• I made corresponding changes to the documentation
• 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/)

[alvarobartt]

LGTM! Just some minor comments regarding the json.loads(schema.json()), and about the removal of .dict(includes=set()) 🤗

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: -0.22 ⚠️

Comparison is base (51751ac) 90.91% compared to head (046c1ba) 90.69%.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3192      +/-   ##
===========================================
- Coverage    90.91%   90.69%   -0.22%     
===========================================
  Files          215      215              
  Lines        11304    11318      +14     
===========================================
- Hits         10277    10265      -12     
- Misses        1027     1053      +26     

Flag	Coverage Δ
pytest	90.69% <100.00%> (-0.22%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
src/argilla/__init__.py	83.33% <ø> (ø)
src/argilla/_version.py	100.00% <100.00%> (ø)
src/argilla/client/apis/datasets.py	90.37% <100.00%> (ø)
src/argilla/client/feedback/dataset.py	83.69% <100.00%> (+1.17%)	⬆️
src/argilla/client/feedback/schemas.py	98.21% <100.00%> (ø)
src/argilla/client/sdk/v1/datasets/api.py	89.00% <100.00%> (+0.11%)	⬆️
src/argilla/server/apis/v1/handlers/datasets.py	100.00% <100.00%> (ø)
src/argilla/server/schemas/v1/datasets.py	100.00% <100.00%> (ø)
src/argilla/server/search_engine.py	92.24% <100.00%> (+0.12%)	⬆️
src/argilla/training/span_marker.py	97.77% <100.00%> (ø)

... and 5 files with indirect coverage changes

☔ View full report in Codecov by Sentry.
📢 Do you have feedback about the report comment? Let us know in this issue.