Update dependency versions

[mumichae]

Remove version pins for numpy and h5py as requested in #283

[mumichae]

For some reason Github actions is returning NMI scores slightly larger than 1 during testing. I couldn't reproduce this error offline.

    def test_nmi_trivial(adata):
        score = scib.me.nmi(adata, 'celltype', 'celltype')
>       assert score == 1
E       assert 1.0000000000000002 == 1
E         +1.0000000000000002
E         -1

[Zethson]

Great, thank you! We'd also require a swift PyPI release after this PR is merged.