`cluv sync` now also syncs datasets #274

Job	Run time
Run linting/pre-commit checks	22s
check_docs	11s
unit_tests (ubuntu-latest, 3.13)	13s
unit_tests (macos-latest, 3.13)	16s
integration_tests	0s
Upload coverage reports to Codecov	0s
	1m 2s

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