Update cartopy and drop Python3.8#507

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Zeitsperre merged 3 commits intomainfrom

May 14, 2024

Commits on May 14, 2024

upgrade cartopy, drop Python3.8, add linting tools to makefile and pyproject.toml, synchronize deps, remove client_environment.yml
Zeitsperre
committed
run pre-commit formatters
Zeitsperre
committed
update workflow conventions, drop Python3.8 from builds
Zeitsperre
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