`oldest` tox task failing

[jared321]

The failure was first found by GH actions, but I can reproduce it locally. The error message was

ERROR: Could not find a version that satisfies the requirement jaxlib==0.4.6

• Looking at the jaxlib page on PyPI, the oldest available version is now v0.4.17
• The use of jaxlib v0.4.17 requires at least numpy v1.22.0
• jax versions on PyPI go all the way back to v0.0, but I am forced to update to jax v0.4.17, which is not surprising

With these changes, all was passing locally.

[jared321]

Changes brought into main with PR #254.

• All actions passed at merge commit.