Add an option to force re-download sample files #309

Job	Run time
sdist_verify	15s
tests / Load tox environments	5s
docs / Load tox environments	5s
allowed-fail-tests / Load tox environments	3s
docs / build_docs-notebooks (ubuntu-latest)	6m 52s
allowed-fail-tests / py312-online (ubuntu-latest)	11m 50s
allowed-fail-tests / py313-devdeps (ubuntu-latest)	7m 1s
tests / py313 (ubuntu-latest)	4m 59s
tests / py312 (windows-latest)	6m 57s
tests / py311 (macos-latest)	5m 10s
tests / py311-oldestdeps (ubuntu-latest)	3m 29s
publish / Build source and wheel distribution	21m 8s
notify	0s
	1h 7m 54s

Provide feedback