Replacing jsonfield2 with jsonfield as former is merged back into latter one.

BOM-2447

This moves the CourseEditLTIFieldsEnabledFlag from edx-platform to this repo. This allows using the flag from both lms and studio.

Bumps [djangorestframework](https://github.com/encode/django-rest-framework) from 3.9.4 to 3.11.2.
- [Release notes](https://github.com/encode/django-rest-framework/releases)
- [Commits](https://github.com/encode/django-rest-framework/compare/3.9.4...3.11.2

)

---
updated-dependencies:
- dependency-name: djangorestframework
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

to catch minor/patch version updates.

as we no longer support that version of Python.

so that dependabot can access the constraints file and automatically
create security PRs; it fails if the constraints file is specified via
remote URL.

The 2.10.0 release couldn't upload to PyPI because of ReStructured Text
errors. Add some checking so that we'll know next time.

* Revert "chore: Replace jsonfield2 with jsonfield"

This reverts commit 2fd330f8.

* fix: only kept jsonfield related revert changes and rest are removed

* Python code cleanup by the cleanup-python-code Jenkins job.

This pull request was generated by the cleanup-python-code Jenkins job, which ran
```
add_common_constraint; make upgrade
```

The following packages were installed:
`edx-repo-tools`

* Added --django-settings-module to pylint

* Changed position

* Remove django-settings-module from pylint command

* Add django-not-configured in pylintrc

Co-authored-by: Muhammad Soban Javed <58461728+iamsobanjaved@users.noreply.github.com>

* Improve logging and error message presentation

* Add full deep linking content data on studio

* Internationalize LTI 1.3 templates

* Add translation tooling

Signed-off-by: Giovanni Cimolin da Silva <giovannicimolin@gmail.com>

* Update translations

* Address review comments

* Additional logging improvements

* Address review comments, fix test

Signed-off-by: Giovanni Cimolin da Silva <giovannicimolin@gmail.com>

* Add initial version of LineItem Implementation

Signed-off-by: Giovanni Cimolin da Silva <giovannicimolin@gmail.com>

* Adding tests

* Add LTI tests and fix quality isses

* Quality nit

* Add missing requirement, upgrade

* Squash migrations

* Fix merge conflicts

* Addressing review comments

* Implement extensions and view support for LTI

* Add missing iss to token

* Add missing requirement, upgrade requirements

* Improving comment

* Add missing exception statement

* Update lti_consumer/lti_1p3/tests/extensions/rest_framework/test_authentication.py

Co-authored-by: Ned Batchelder <ned@nedbatchelder.com>

Co-authored-by: Ned Batchelder <ned@nedbatchelder.com>

This change moves the LTI configuration retrieval to
a Django model that will LTI configuration.
The current model proxies back the to blocks to keep
backwards compatibility.

See reasoning for change at:
https://github.com/edx/xblock-lti-consumer/blob/master/docs/decisions/0001-lti-extensions-plugin.rst

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