testing/apprise: add checkdepends py3-dbus
The dbus tests (and others) where skipped on other architectures than those that failed to build the package on the package builders.
SKIPPED [1] test/test_plugin_glib.py:48: Skipping dbus-python based tests
vs
ImportError while importing test module '/home/buildozer/aports/testing/apprise/src/apprise-1.6.0/
test/test_plugin_glib.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/lib/python3.11/importlib/__init__.py:126: in import_module
return _bootstrap._gcd_import(name[level:], package, level)
test/test_plugin_glib.py:51: in <module>
from dbus import DBusException # noqa E402
E ImportError: cannot import name 'DBusException' from 'dbus' (unknown location)