Bump furo from 2021.11.23 to 2022.2.23 in /requirements

[dependabot[bot]]

Bumps furo from 2021.11.23 to 2022.2.23.

Changelog

Sourced from furo's changelog.

Changelog

2022.02.23 -- Keen Kobi

• ✨ Add a "Back to Top" button that shows up when scrolling up.
• Add a URL to GitHub in Project-URLs.
• Break long words in the prev/next buttons.
• Fix includes in Kitchen sink.
• Handle external references for viewcode links.
• Properly offset scrollspy.
• Switch from optional-dependencies (AKA extras) to dedicated requirements.txt files.

2022.02.14.1 -- Jazzy Jasmine (bugfix)

• Drop a , / for positional-only arguments.

2022.02.14 -- Jazzy Jasmine

• ✨ Rework typography, pivoting to bold headings.
• ✨ Redesign the footer and allow footer icons.
• ✨ Change the default permalinks icon.
• ✨ Add an edit button for RTD-built pages.
• ✨ Better integration of Read the Docs' embed.
• Add dedicated headings for each admonition type.
• Add the green border for sphinx-copybutton after copy.
• Bump to the latest Node.js LTS.
• Don't set display: block on visible only-* elements. (for sphinx-design)
• Improve footnote styling.
• Improve styling for div.math equation numbers.
• Rework how :target links are handled.
• Stylise small tag.
• Stylise code block captions.
• Stylise various forms of blockquotes.
• Treat all custom code injection as unstable.
• Tweak admonition spacing.
• Tweak how muted-links are presented.
• Use a better color for hovered tabs, with sphinx-inline-tabs.
• Use higher specificity for hiding elements. (for sphinx-design)
• Use the modern Firefox focus ring.

2022.01.02 -- Immaculate Indigo

... (truncated)

Commits

• 7c03799 Prepare release: 2022.02.23
• beac714 Update changelog
• df3defb Add a tiny extra offset for Blink browsers on scroll
• 45fa3ca Break long words in the prev/next buttons
• 9534e33 Add a URL to GitHub
• c114077 Drop the dot
• dcf467f Fix includes in Kitchen sink
• 94c72de Make the RTD install the theme for use
• 4c33362 Make back-to-top react to hover with color change
• 8a6b51c Switch from optional-dependencies to dedicated requirements.txt files
• Additional commits viewable in compare view

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