Updates to rule severity and threshold handling.
- Fixed the bug where the overriden rule severity wasn't taken into account by reports (#623)
- Threshold severity can be now configured the same way the rule severity is configured (#624)
- Invalid threshold value now raises an error instead of silently using INFO severity (#624)
Other
Updated Robocop python requirements to ">=3.6". The requirement did not change but we were missing this data in our metadata (#621).
Acknowledgements 💪🏻
@UliSei for raising the issues regarding our rule & threshold severity