This is mostly relevant when doing API changes on the client, as it
simplifies development by much

We stop using "has_management_plugin", since it was remove upstream
for packagekit and ostree. Basically since it would be nuts to have
this plugin installed alonside any other of those.

Includes a fix for the tests too

Nothing remarkable here

This is a pattern taken from upstream

This function no longer exists!

packagekit plugin is forcing a refine, I wonder if we should too

This is mostly to improve the debugging experience. It is often very
useful to run tests with gdb, and the pytest method makes it
impossible to do correctly without many changes. By having a wrapper,
it is as simple as calling the wrapper with the extra meson arguments

Making it easier to distinguish id and name, and checking it in more
places

By setting the proper list to the task