Update jaxlib requirement from <=0.4.14 to <=0.4.20 in /tests

[dependabot]

Updates the requirements on jaxlib to permit the latest version.

Changelog

Sourced from jaxlib's changelog.

jax 0.4.20 (Nov 2, 2023)

jaxlib 0.4.20 (Nov 2, 2023)

• Bug fixes
  • Fixed some type confusion between E4M3 and E5M2 float8 types.

jax 0.4.19 (Oct 19, 2023)

• New Features

  • Added {obj}jax.typing.DTypeLike, which can be used to annotate objects that are convertible to JAX dtypes.
  • Added jax.numpy.fill_diagonal.

• Changes

  • JAX now requires SciPy 1.9 or newer.

• Bug fixes

  • Only process 0 in a multicontroller distributed JAX program will write persistent compilation cache entries. This fixes write contention if the cache is placed on a network filesystem such as GCS.
  • The version check for cusolver and cufft no longer considers the patch versions when determining if the installed version of these libraries is at least as new as the versions against which JAX was built.

jaxlib 0.4.19 (Oct 19, 2023)

• Changes
  • jaxlib will now always prefer pip-installed NVIDIA CUDA libraries (nvidia-... packages) over any other CUDA installation if they are installed, including installations named in LD_LIBRARY_PATH. If this causes problems and the intent is to use a system-installed CUDA, the fix is to remove the pip installed CUDA library packages.

jax 0.4.18 (Oct 6, 2023)

jaxlib 0.4.18 (Oct 6, 2023)

• Changes

  • CUDA jaxlibs now depend on the user to install a compatible NCCL version. If using the recommended cuda12_pip installation, NCCL should be installed automatically. Currently, NCCL 2.16 or newer is required.
  • We now provide Linux aarch64 wheels, both with and without NVIDIA GPU support.

• Deprecations

  • A number of internal utilities and inadvertent exports in {mod}jax.lax have been deprecated, and will be removed in a future release.
    • jax.lax.dtypes: use jax.dtypes instead.
    • jax.lax.itertools: use itertools instead.

... (truncated)

Commits

• e22b8bb Merge pull request #18325 from skye:version
• 6813819 Update versions for jax + jaxlib 0.4.20 release
• 81ac67f Fix typing annotations for @jax.named_call
• 1c66ac5 Update XLA dependency to use revision
• d41078f Properly pack and unpack int4 arrays on CPU in PJRT.
• 5d28961 [Mosaic] Add support for generalized reduction unrolling to infer_vector_layout
• f17f549 Add support for dynamic indices in VMEM loads and stores
• 32a317f Update XLA dependency to use revision
• caa1c39 [Mosaic][NFC] Remove unused parameter
• a009f8d Pass flags from kernel into HLO backend config.
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot show <dependency name> ignore conditions will show all of the ignore conditions of the specified dependency
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)

[github-actions]

This PR will be closed in a week because of 2 weeks of no activity.

[github-actions]

This PR was closed because it has been stalled for 2 week with no activity.

[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.