fix: drop jsonfield dependency and use builtin JSONField

[obdulia-losantos]

---

name: Drop jsonfield
about: Drops jsonfield dependency
assignees: fabiocaccamo

Describe your changes
Dropped unmaintained jsonfield field and replaced jsonfield.JSONField with django.db.models.JSONField class.

Addresses second option indicated in PR #179

Related issue
#178

Checklist before requesting a review

• I have performed a self-review of my code.
• I have added tests for the proposed changes.
• I have run the tests and there are not errors.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.34%. Comparing base (bdb4312) to head (066609f).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #180      +/-   ##
==========================================
- Coverage   85.41%   85.34%   -0.07%     
==========================================
  Files          21       21              
  Lines         432      430       -2     
==========================================
- Hits          369      367       -2     
  Misses         63       63              

Flag	Coverage Δ
unittests	85.34% <100.00%> (-0.07%)	⬇️

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

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[fabiocaccamo]

@obdulia-losantos thank you for this PR!

[fabiocaccamo]

@obdulia-losantos thank you for this PR, general considerations:

• keep django in requirements.txt but not in pyproject.toml
• don't remove requirements.txt file
• completely remove third-party JSONField dependency and references
• don't add unnecessary migrations

[obdulia-losantos]

@obdulia-losantos thank you for this PR, general considerations:

• keep django in requirements.txt but not in pyproject.toml
• don't remove requirements.txt file
• completely remove third-party JSONField dependency and references
• don't add unnecessary migrations

@fabiocaccamo I applied your suggestions but this is the error I have and the reason of deleting the file

https://app.codacy.com/gh/fabiocaccamo/django-extra-settings/pull-requests/180/issues#issue-66e270ae64aeb0e80050b8c315a47edb

[fabiocaccamo]

@obdulia-losantos don't worry about the Codacy issue, the important thing is that it passes all the tests.

Perfect, thank you!