Use uv for RTD build. #1059
Description
What's the new feature?
See https://docs.readthedocs.com/platform/stable/build-customization.html#install-dependencies-with-uv for an example.
What value does this add?
Simplifies maintenance: allows the requirements-docs.txt file to be removed, allowing dependabot to be used for automatically updating the uv.lock #1058.
May also speed up the RTD build.
Is there an alternative you've considered?
Continue using the current configuration.
Additional context
No response