feat(pylint): upgrade version and config

feat(pylint): upgrade version and config

Pylint version bumped to 3.0.1.

Upgrade is needed, because the old version
has only a limited understanding of type hints
and data classes (leading to many false errors).

Config values are simplified,
only few old customizations are kept.

Notably, max line length is increased to 88
(only here, not in other checkers).

Change-Id: I70802a32693a8f21515b9093b12e292f88ee9e3f
Signed-off-by: Vratko Polak <vrpolak@cisco.com>