Remove the redundant `wheel` dependency, as it is added by the backend
automatically.  Listing it explicitly in the documentation was
a historical mistake and has been fixed since, see:
pypa/setuptools@f7d30a9

* chore: rework dev setup

* chore: remove changelog from package description

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

* chore: upgrade sphinx to v6

* chore: allow writing docs using markdown

https://blog.readthedocs.com/migrate-configuration-v2/

The new config allow us to specify the package requirements of the docs,
this should fix the build process at readthedocs.

* chore: merge changelogs

* chore: import changelog from gh releases

* chore: remove old changelog

* docs: include new changelog

* refactor: replace pytz tzoffset with timezone utc

* refactor: replace isoparse with datetime.fromisoformat

* feat: remove python-dateutil dependency

)