1.0.0 release incompatible with Sphinx 7.4.7 (latest)

[jmckenna]

• filed upstream at: https://github.com/sphinx-doc/sphinx/issues/12693
• however, packagers will likely come here to the Alabaster repo, to find discsussions, so tracking here also

[AA-Turner]

Thanks Jeff, I've responded in https://github.com/sphinx-doc/sphinx/issues/12693.

A