Enable rubocop; Bump version; Bump dependencies; Fix rubocop #8
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👋 This PR provides a minimal rubocop config and fixes the gem to ruby versions 3.0 and higher. (<3.0 is EOL).
I also run a very basic rubocop check and adjusted all complaints to have a clean state.
This causes a required change (
set_debug(bool)
toshow_debug(bool)
) - if that's a bad change in your opinion, we can disable it in rubocop so it won't pop up. For this reason I've bumped to mayor 4.0 (breaking change).Also raised the dependencies to most current possible. Hope that fits.