Pgq

---------

Fixes:

* status: handle root with random provider

-------

Features:

* takeover: handle merge workers on takeover
* takeover: move switch of other subscriber before takeover

---------

Features:

* status command improvements:
- Switch --compact for shorter output.
- Coloring when lagging.
- Order by node name.

Cleanups:

* Disable "universal" build (py2+3)
* Fix release uploads.

---------

Cleanups:

* Drop Debian packaging
* style: use compact super()
* ci: use new path/env syntax
* Add py.typed

-------

* Enable Github actions
* Drop Py2 support.
* Upgrade tox setup.