* Add test runner and improve test with multi databases
* Enhance cross-database compatibility and testing
- Fix TRUNCATE command support detection for different databases
- Add conditional PostgreSQL-specific model registration
- Improve database-specific test skipping logic
- Remove SQLite from TRUNCATE supported vendors list
* Add docker compose for testing
* Improve CI/CD with multi-database support
- Add separate test workflows for SQLite, PostgreSQL, and MySQL
* Add `mysqlclient` deps
* fix minor
- Add mysqlclient deps
- upload coverage step
* Fix coverage upload name conflicts in CI workflow
- Add database type to coverage upload names (SQLite/PostgreSQL/MySQL)
* Refactor: re-arrange test application
This was triggered by the need to run "python manage.py", which is impossible when serving the whole project in the same directory as is configured in INSTALLED_APPS ("auditlog_tests"). This setup is heavily inspired by other jazzband projects.
* Add check for missing migrations
The `django-jsonfield` module is not maintained anymore and raises some
errors with Django 4.0. So, as a recommendation in this package, and as
Django 2.2 is still maintained, `django-jsonfield-backport` will do the
job for the `JSONField` field.
Ref #43
Ref #334
