chore(deps-dev): bump tsdown from 0.20.3 to 0.21.1

[dependabot]

Bumps tsdown from 0.20.3 to 0.21.1.

Release notes

Sourced from tsdown's releases.

v0.21.1

   🚨 Breaking Changes

• css: Move all CSS support to @tsdown/css package  -  by @​sxzz in rolldown/tsdown#809 (1b1a1)

[!IMPORTANT] If you are using CSS features (e.g., CSS imports), you now need to manually install the @tsdown/css package:

npm install @tsdown/css -D
# or
pnpm add @tsdown/css -D

Note: CSS support is still an experimental feature and does not follow SemVer. Breaking changes may occur in any release.

   🚀 Features

• css:
  • Add css.inject option to preserve CSS imports in JS output  -  by @​sxzz and Claude Haiku 4.5 in rolldown/tsdown#808 (ad745)
  • Support ?inline query for CSS imports  -  by @​sxzz in rolldown/tsdown#810 (b7379)
  • Support node_modules package resolution  -  by @​sxzz and Claude Haiku 4.5 in rolldown/tsdown#812 (b06b4)

   🐞 Bug Fixes

• Generate correct filename for sass files when dts is enabled  -  by @​ocavue in rolldown/tsdown#802 (848a7)
• css:
  • Handle virtual module IDs from framework plugins  -  by @​sxzz (c421f)
  • Ignore css imports with URL query  -  by @​ocavue and @​sxzz in rolldown/tsdown#806 (c1d23)

    View changes on GitHub

v0.21.0 - Notable Changes

Breaking Changes

Dependency options renamed to deps namespace

The dependency-related options have been moved under a new deps namespace with clearer names:

• external -> deps.neverBundle
• noExternal -> deps.alwaysBundle
• inlineOnly -> deps.onlyAllowBundle
• skipNodeModulesBundle -> deps.skipNodeModulesBundle

Before:

export default defineConfig({
  external: ['vue'],
  noExternal: ['lodash'],
})

... (truncated)

Commits

• 2b1be7e chore: release v0.21.1
• 38ca9c1 chore: upgrade unrun
• 34b7326 chore(deps): update dependency vite to ^8.0.0-beta.18 (#814)
• 7aa0d7d chore(deps): update all non-major dependencies (#813)
• b06b421 feat(css): support node_modules package resolution (#812)
• 05dabf4 docs: remove FAQ additions and simplify hooks examples
• 26bd50d chore(deps): update all non-major dependencies (#805)
• 73d7d0f docs: comprehensive documentation review and update
• 8e3fa9c refactor(css): improve LightningCSSOptions
• b737941 feat(css): support ?inline query for CSS imports (#810)
• Additional commits viewable in compare view

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