Proof of concept for depending on external blosc python package #2097

Job	Run time
Build wheel on macos-14	2m 25s
Build wheel on macos-13	2m 17s
Build wheel on windows-latest	4m 5s
Build source distribution	1m 41s
Build wheel on ubuntu-22.04-arm	9m 38s
Build wheel on ubuntu-latest	14m 33s
test_dist_pypi	5s
upload_pypi	0s
	34m 44s

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