Bump furo from 2024.1.29 to 2024.5.6

[dependabot]

Bumps furo from 2024.1.29 to 2024.5.6.

Changelog

Sourced from furo's changelog.

Changelog

2024.05.06 -- Cheerful Cerulean

• ✨ Add new custom icons for auto mode, reflecting the currently active theme.
• ✨ Add a view this page button.
• ✨ Add colours and highlighting to "version modified" API helpers.
• ✨ Add release information to various customisation knobs.
• Make all icons bigger and use a thinner stroke with them.

2024.04.27 -- Bold Burgundy

• Add a skip to content link.
• Add --font-stack--headings.
• Add :visited colour and enforce uniform contrast between light/dark.
• Add an offset of :target to reduce back-to-top overlap.
• Improve dark mode colours.
• Fix outstanding colour contrast warnings on Firefox.
• Fix bad indent in footnotes.
• Tweak handling of default configuration options in a more resilient manner.
• Tweak length and sizing of API source links.
• Stop search engine indexing on search page.

2024.01.29 -- Amazing Amethyst

• Fix canonical url when building with dirhtml.
• Relicense the demo module.

2023.09.10 -- Zesty Zaffre

• Make asset hash injection idempotent, fixing Sphinx 6 compatibility.
• Fix the check for HTML builders, fixing non-HTML Read the Docs builds.

2023.08.19 -- Xenolithic Xanadu

• Fix missing search context with Sphinx 7.2, for dirhtml builds.
• Drop support for Python 3.7.
• Present configuration errors in a better format -- thanks @​AA-Turner!
• Bump require_sphinx() to Sphinx 6.0, in line with dependency changes in Unassuming Ultramarine.

... (truncated)

Commits

• b087e93 Prepare release: 2024.05.06
• 169c63d Update the changelog
• b7ec84d Drop discussion of Sphinx's basic theme
• 2cd4d4a Demote the note about inherited from basic configuration
• 983d6c3 Tweak the colours for API versionmodified information
• 1ffbf76 Add release information to various customisation knobs
• 2c386b9 Use the appropriate Sphinx directive instead of weird text
• ec8815a Add (back?) support for RtD context inference on top of page buttons
• 1b4cf89 Bump the npm group with 5 updates (#793)
• ce8fb10 Bump the github-actions group with 3 updates (#792)
• Additional commits viewable in compare view

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