Refactor project setup

[jedie]

• Switch to git main branch
• Switch from pytest to normal unittests
• Switch from poetry to pip-tools
• Use https://github.com/jedie/manage_django_project for developing
• Expand test matrix by remove Django 4.0 and add 4.2
• Enhance tox config

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 54.87179% with 88 lines in your changes missing coverage. Please review.

Project coverage is 67.64%. Comparing base (50d720b) to head (98849c0). Report is 44 commits behind head on main.

Files	Patch %	Lines
manage.py	44.26%	34 Missing :warning:
huey_monitor_project/settings/local.py	0.00%	26 Missing :warning:
huey_monitor_project/middlewares.py	0.00%	11 Missing :warning:
huey_monitor_project/settings/prod.py	90.90%	4 Missing :warning:
...ct/test_app/management/commands/fire_test_tasks.py	0.00%	4 Missing :warning:
huey_monitor_project/urls.py	75.00%	3 Missing :warning:
huey_monitor_project/settings/docker.py	0.00%	2 Missing :warning:
...nagement/commands/fire_parallel_processing_task.py	0.00%	2 Missing :warning:
huey_monitor_project/wsgi.py	0.00%	2 Missing :warning:

:exclamation: There is a different number of reports uploaded between BASE (50d720b) and HEAD (98849c0). Click for more details.

HEAD has 142 uploads less than BASE

| Flag | BASE (50d720b) | HEAD (98849c0) | |------|------|------| ||151|9|

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #118 +/- ## =========================================== - Coverage 84.21% 67.64% -16.57% =========================================== Files 41 41 Lines 849 748 -101 Branches 0 82 +82 =========================================== - Hits 715 506 -209 - Misses 134 241 +107 - Partials 0 1 +1 ```

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