testing/mpdris2: add dependencies
Without py3-gobject3
installed I get:
Traceback (most recent call last):
File "/usr/bin/mpDris2", line 57, in <module>
from gi.repository import GLib
ModuleNotFoundError: No module named 'gi'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/bin/mpDris2", line 60, in <module>
import glib as GLib
ModuleNotFoundError: No module named 'glib'
py3-mutagen
is for detecting image cover of the currently-played music file.