Bump postcss and styled-components in /website

[dependabot]

Bumps postcss to 8.5.15 and updates ancestor dependency styled-components. These dependencies need to be updated together.

Updates postcss from 8.5.8 to 8.5.15

Release notes

Sourced from postcss's releases.

8.5.15

• Fixed declaration parsing performance (by @​homanp).

8.5.14

• Fixed custom syntax regression (by @​43081j).

8.5.13

• Fixed postcss-scss commend regression.

8.5.12

• Fixed reading any file via user-generated CSS.
• Added opts.unsafeMap to disable checks.

8.5.11

• Fixed nested brackets parsing performance (by @​offset).

8.5.10

• Fixed XSS via unescaped </style> in non-bundler cases (by @​TharVid).

8.5.9

• Speed up source map encoding paring in case of the error.

Changelog

Sourced from postcss's changelog.

8.5.15

• Fixed declaration parsing performance (by @​homanp).

8.5.14

• Fixed custom syntax regression (by @​43081j).

8.5.13

• Fixed postcss-scss commend regression.

8.5.12

• Fixed reading any file via user-generated CSS.
• Added opts.unsafeMap to disable checks.

8.5.11

• Fixed nested brackets parsing performance (by @​offset).

8.5.10

• Fixed XSS via unescaped </style> in non-bundler cases (by @​TharVid).

8.5.9

• Speed up source map encoding paring in case of the error.

Commits

• eae46db Release 8.5.15 version
• 79508ff Update CI actions
• b128e21 Speed up declaration parsing by avoiding creating new array on each token
• 9825dca Fix code format
• 55789c8 Update dependencies
• 84fbbe9 Install older pnpm action for old Node.js
• 9f860bd Revert pnpm action for old Node.js
• 0877198 Update CI actions
• b2d1a33 Fix linter warnings
• 0700dac Merge pull request #2088 from rootvector2/add-oss-fuzz-harness
• Additional commits viewable in compare view

Updates styled-components from 6.3.11 to 6.4.2

Release notes

Sourced from styled-components's releases.

styled-components@6.4.2

Patch Changes

• 9945904: Restore TypeScript prop autocomplete inside the JSX of a styled component once the first attribute is typed.
• 9945904: Apply all chain levels' styles when an extended styled component renders with the as prop under Preact's react-compat.
• 9945904: Respect a custom toString on plain value objects (e.g. design tokens) when interpolated into a styled component, rather than walking the object's keys as CSS declarations.
• 9945904: Fix a TypeScript error when wrapping a component whose props include an as prop with a non-string type (such as Next.js Link's as?: Url). The styled component now accepts either the styled-components polymorphism value or the wrapped component's own as type, so spreading the wrapped component's props onto the styled component is assignable again.
• 9945904: Restore reliable styling in production browser bundles built without a runtime process global.

styled-components@6.4.2-prerelease-20260516150535

d20b88e9bc16e234f5f2c2b3a7c7d7c0472d0edd Fix a TypeScript error when wrapping a component whose props include an as prop with a non-string type (such as Next.js Link's as?: Url). The styled component now accepts either the styled-components polymorphism value or the wrapped component's own as type, so spreading the wrapped component's props onto the styled component is assignable again.

Full Changelog: styled-components/styled-components@styled-components@6.4.2-prerelease-20260514185513...styled-components@6.4.2-prerelease-20260516150535

styled-components@6.4.2-prerelease-20260514185513

Internal changes only.

Full Changelog: styled-components/styled-components@styled-components@6.4.2-prerelease-20260514184932...styled-components@6.4.2-prerelease-20260514185513

styled-components@6.4.2-prerelease-20260514184932

No new changes since the previous release. (Debugging the changelog generation in the prerelease builds.)

Full Changelog: styled-components/styled-components@styled-components@6.4.2-prerelease-20260514182414...styled-components@6.4.2-prerelease-20260514184932

styled-components@6.4.2-prerelease-20260514182414

Patch Changes

• 9945904e: Restore TypeScript prop autocomplete inside the JSX of a styled component once the first attribute is typed.

• 9945904e: Apply all chain levels' styles when an extended styled component renders with the as prop under Preact's react-compat.

• 9945904e: Respect a custom toString on plain value objects (e.g. design tokens) when interpolated into a styled component, rather than walking the object's keys as CSS declarations.

• 9945904e: Fix a TypeScript error when wrapping a component whose props include an as prop with a non-string type (such as Next.js Link's as?: Url). The styled-components as and forwardedAs props now consistently override the wrapped component's same-named props instead of colliding with them.

• 9945904e: Restore reliable styling in production browser bundles built without a runtime process global.

Full Changelog: styled-components/styled-components@styled-components@6.4.1...styled-components@6.4.2-prerelease-20260514182414

styled-components@6.4.1

Patch Changes

• 49d09ae: Fix a performance regression in 6.4.0 where dynamic createGlobalStyle components caused significant re-render slowdowns. Also restores pre-6.4 cascade ordering when multiple instances of the same createGlobalStyle coexist.
• eca95b2: Fix outdated dev-mode error messages for keyframes-in-untagged-strings and component-selector references that still pointed at www.styled-components.com and described behavior from styled-components v3.

styled-components@6.4.1-prerelease-20260417184545

Full Changelog: https://github.com/styled-components/styled-components/compare/styled-components@6.4.1-prerelease-20260417184031...styled-components@6.4.1-prerelease-20260417184545

styled-components@6.4.1-prerelease-20260417184031

What's Changed

... (truncated)

Commits

• f9f6546 Version Packages
• 1794522 fix: include changesets re-touched since the last prerelease [skip ci]
• 0097cdb ci: branch-scoped Version Packages PR title
• d20b88e fix(types): accept wrapped component's own as type when spreading props (#5...
• 786cd8b fix: don't double-count changesets already posted in a prior prerelease
• 0dd1325 chore: adjust release script
• 4f2923a chore: get 6.x prereleases working properly
• 9945904 6.x bugfixes (#5746)
• f7cddb5 chore: run workflows for 6.x
• 499664e chore: prep to allow 6.x point releases
• Additional commits viewable in compare view

[dependabot]

Looks like these dependencies are up-to-date now, so this is no longer needed.