The dbus-next package uses the Python type annotation for dbus types. This is
not compatible with the python typing assumption that flake8 makes.
Exclude F821 from this line.
Fixes: https://gitlab.com/buildroot.org/buildroot/-/jobs/1687009829
partially:
support/testing/tests/package/sample_python_dbus_next.py:17:36: F821 undefined name 's'
support/testing/tests/package/sample_python_dbus_next.py:17:48: F821 undefined name 's'
support/testing/tests/package/sample_python_dbus_next.py:17:56: F821 undefined name 's'
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
