Update to Ubuntu 24.04 for readthedocs

[radarhere]

warehouse/.readthedocs.yml

Lines 2 to 9 in 10570d1

	# Read the Docs configuration file
	# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
	# Required
	version: 2
	build:
	os: ubuntu-22.04

https://docs.readthedocs.io/en/stable/config-file/v2.html mentions that 'ubuntu-24.04' can now be used. However, perhaps better than that is 'ubuntu-lts-latest', to automatically stay on the latest available OS.

[miketheman]

Thanks for the suggestion.

We'd prefer to have the underlying version "known" and using the lts version means that it could swap out underneath us.

[radarhere]

Ok, sure. I've changed the commit to use 'ubuntu-24.04' instead.

[miketheman]

Thanks!