Update Django-rest-framework to latest #2738

[phillxnet]

Updates DRF from 3.13.1 to latest 3.14.0. Via removal of our now redundant Django version related pinning.

Includes

• Incidental urllib3 update from 2.0.7 to 2.1.0.

Fixes #2738

[phillxnet]

Testing

An RPM (5.0.5-2743) was successfully built and installed with this PR pre-merged. Proving all tests passed within the rpmbuild %check scriptlet environment (https://github.com/rockstor/rockstor-rpmbuild/tree/testing).

A subsequent run of all tests on the build host (15.5 amd64) resulted in:

rleap15-5:~ # cd /opt/rockstor/src/rockstor/
rleap15-5:/opt/rockstor/src/rockstor # export DJANGO_SETTINGS_MODULE=settings
rleap15-5:/opt/rockstor/src/rockstor # poetry run django-admin test -v 2
...
----------------------------------------------------------------------
Ran 278 tests in 30.712s

OK

The resulting Rockstor instance accepted initial admin user setup and pool import followed by a successful Huey task completion: data pool balance.

[13/Nov/2023 18:21:21] INFO [storageadmin.tasks:56] Now executing Huey task [start_balance], id: e794a412-f1d6-4da7-857d-d7ab2f8a4365.
[13/Nov/2023 18:21:30] INFO [storageadmin.tasks:64] Task [start_balance], id: e794a412-f1d6-4da7-857d-d7ab2f8a4365 completed OK
[13/Nov/2023 18:21:30] INFO [storageadmin.tasks:67] Updating end_time accordingly to 2023-11-13 18:21:30.385904+00:00
[13/Nov/2023 18:21:30] INFO [storageadmin.tasks:56] Now executing Huey task [update_end_time], id: 99281a62-3ce8-485b-9803-f45d3467617b.
[13/Nov/2023 18:21:30] INFO [storageadmin.tasks:64] Task [update_end_time], id: 99281a62-3ce8-485b-9803-f45d3467617b completed OK

[FroggyFlox]

Thanks for all the tests, @phillxnet !
I just wanted to confirm that, as expected, the 5.0.5-2743 rpm built and installed successfully on my end as well.

[phillxnet]

@FroggyFlox Thanks for the confirmation. Much appreciated.
Merging this to press on with our technical dept main objective.