Update MaxText requirements

[khatwanimohit]

Description

• Upgrade maxtext's requirements for TPUs and GPUs
• Adds tokamax as a dependency

Note that this PR only updates the files used for installing maxtext page and stable docker images. stable-stack mode of building docker images still pins jax=0.7.0, we will remove that pin after new base image is released.

To update requirements file see instructions here

Notice 1: Once all tests pass, the "pull ready" label will automatically be assigned.
This label is used for administrative purposes. Please do not add it manually.

Notice 2: For external contributions, our settings currently require an approval from a MaxText maintainer to trigger CI tests.

Tests

Tested locally using uv pip install -e .[tpu] --resolution=lowest and bash setup.sh

tested that bash docker_build_dependency_image.sh MODE=nightly installs jax=0.8.1.dev20251022

Checklist

Before submitting this PR, please make sure (put X in square brackets):

• I have performed a self-review of my code. For an optional AI review, add the gemini-review label.
• I have necessary comments in my code, particularly in hard-to-understand areas.
• I have run end-to-end tests tests and provided workload links above if applicable.
• I have made or will make corresponding changes to the doc if needed, including adding new documentation pages to the relevant Table of Contents (toctree directive) as explained in our documentation.

[bvandermoon]

Generally LGTM, just one comment

[parambole]

In general the changes LGTM. I have left a non-blocking question.

Thanks!