Ephemetoot

This is the final feature release - `ephemetoot` is now in maintenance mode and only security patches will be released in future.

Enhancements

* "boosts only" option available via config file (thanks to wgahnagl)

Other changes

* uses `setup-tools` for packaging instead of `poetry`.

- removes unnecessary setuptools dependency (pacoesteban)
- version number displayed is now accurate for latest version (hughrun)
- minimum Python version is now 3.8

This patch adjusts the `archive_media` test so that it mocks an http request instead of needing to do a real one. Thanks pacoesteban

No new features.

With the new config setting `archive_media` set to `true`, media files will be archived as well as the toot JSON. Files are saved to `/example.com/original/path/to/media.extension`

Includes:
73 - add media archiving feature
75 - add test and bump dependencies

Upgrade with `pip install --upgrade ephemetoot`

This is a bugfix release with improvements to error handling. It resolves an issue that may manifest in long-running jobs on unstable networks.

- merges 68
- incorporates 67
- Fixes 66
- Resolves 62

Upgrade with `pip install --upgrade ephemetoot`