Doc builds are failing with navigation_with_keys warnings

[DominicOram]

Doc builds on repositories dependant on this one are failing with the error:

WARNING: The default value for `navigation_with_keys` will change to `False` in the next release. If you wish to preserve the old behavior for your site, set `navigation_with_keys=True` in the `html_theme_options` dict in your `conf.py` file.Be aware that `navigation_with_keys = True` has negative accessibility implications:https://github.com/pydata/pydata-sphinx-theme/issues/1492
ERROR: InvocationError for command sphinx-build -EW --keep-going -T docs build/html (exited with code 1)

See:

• Add navigation_with_keys in html_theme_options for conf.py python3-pip-skeleton-cli#89
• Add navigation_with_keys to html_theme_options dictionary in conf.py bluesky/python3-pip-skeleton#11
• Add navigation_with_keys key to html_theme_options bluesky/ophyd-async#38
• Doc build broken dodal#218

[DominicOram]

This is also failing on this repo https://github.com/DiamondLightSource/python3-pip-skeleton/actions/runs/6459306926/job/18090529062