Modernize dependencies

[delucis]

Description (required)

Updates various docs dependencies that are getting a bit dusty including removing some (like node-fetch that are no longer needed at all).

Dependency changes

Removed

• node-fetch (no longer needed in newer Node versions)
• eslint-plugin-react (we don’t have any JSX to lint)
• remark-directive (not used directly anymore — was used for asides but that’s now handled by Starlight)

Major

• @11ty/eleventy-fetch: 3.0.0 => 5.0.1 (removes node-fetch under the hood)
• @types/node: 18.6.4 => 20.17.10 (we’re running on Node 20 everywhere now)
• eslint: 8.29.0 => 9.17.0 (switched to the newer “flat” config format)
  • @typescript-eslint/eslint-plugin was removed in favour of typescript-eslint
  • @typescript-eslint/parser: 5.46.1 => 8.18.1
  • astro-eslint-parser: 0.16.0 => 1.1.0
  • eslint-plugin-astro: 0.21.0 => 1.3.1
  • Added: @eslint/js and globals
• domhandler: 4.3.1 => 5.0.3 (types for htmlparser2)
• htmlparser2: 7.2.0 => 9.1.0 (used for DOM parsing in link checker CI, required a tweak to import style as they changed package format)
• p-retry: 5.1.1 => 6.2.1 (used for our cached fetches, v6 only dropped old Node version support)
• sharp: 0.32.6 => 0.33.5

Minor

pnpm itself: 9.3.0 => 9.15.1

• @actions/core: 1.9.0 => 1.11.1 (used in link checker CI and Tuesday translation bot)
• @docsearch/css & @docsearch/js: 3.5.1 => 3.8.2
• fast-glob: 3.2.11 => 3.3.2
• prettier: 3.3.3 => 3.4.2
• typescript: 5.0.2 => 5.6.2 (required a few minor tweaks to get type checks passing)

Other changes

• Removed two script utilities we no longer use (pre-Lunarian relics)

Not updated

• canvas-confetti — recent releases add new features we don’t need and increase bundle size
• remark-smartypants — causes type errors for some reason, didn’t investigate why

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[HiDeoo]

Looks good to me and seems to be working as expected locally through the CLI and Visual Studio Code (only tested these 2). Only left a small comment to potentially remove a little bit more config.

[sarah11918]

Tested the deploy preview with all of the usual suspects!