Platypush

- [`core`]: New architecture for the Redis bus - now leveraging pub/sub with a
connection pool instead of a single-connection queue. It makes the
application much faster and less prone to Redis deadlocks.

- [`youtube`]:
[391](https://git.platypush.tech/platypush/platypush/issues/391): added
support for:

- Add/remove playlists (UI)
- Add to/remove from playlist (UI)
- Subscribe/unsubscribe from channels (UI)
- Browse channels and playlists directly in the UI
- Download media and audio

- [`torrent`]: [[263](https://git.platypush.tech/platypush/platypush/issues/263)], [[#375](https://git.platypush.tech/platypush/platypush/issues/375)],
[[407](https://git.platypush.tech/platypush/platypush/issues/407)] and
[[408](https://git.platypush.tech/platypush/platypush/issues/408)]: added
torrents.csv search provider and rewritten torrents UI.

- [[281](https://git.platypush.tech/platypush/platypush/issues/281)]
replaced `warnings.warn` with `logging.warning`, as there is no easy and
reliable way of routing `warnings.warn` to `logging`.

- [[405](https://git.platypush.tech/platypush/platypush/issues/405)] Fixed
timezone/timestamp rendering issues for `calendar.ical` events.
- [[403](https://git.platypush.tech/platypush/platypush/issues/403)]
Included inherited actions in plugins docs.

- [[384](https://git.platypush.tech/platypush/platypush/issues/384)] Added
`assistant.openai` and `tts.openai` plugins.

- 🐛 Bug fix on one of the entities modules that prevented the application from
loading when `.` is part of `PYTHONPATH`.

- A proper solution for the `utcnow()` issue.

It was a bit trickier than expected to solve, but now Platypush uses a
`utcnow()` facade that always returns a UTC datetime in a timezone-aware
representation.

The code should however also handle the case of timestamps stored on the db in
the old format.