meson: Make default test setup with D-Bus
This makes sure that our tests run within their own D-Bus session (which is a requirement most of the time)
As a result, we can get rid of a few workarounds in our CI to setup such a session.
This makes sure that our tests run within their own D-Bus session (which is a requirement most of the time)
As a result, we can get rid of a few workarounds in our CI to setup such a session.