Update mkdocs-material to 9.7.0

[MatthewMckee4]

Summary

Mostly copied astral-sh/ruff#21797.

Test Plan

From contributing.md, ran:

uv pip compile docs/requirements.in -o docs/requirements.txt --universal -p 3.12
uvx --with-requirements docs/requirements.txt -- mkdocs serve -f mkdocs.yml

[dhruvmanila]

Thank you!