Bump vite from 6.4.1 to 6.4.2 in /packages/ui-extensions-server-kit

[dependabot]

Bumps vite from 6.4.1 to 6.4.2.

Release notes

Sourced from vite's releases.

v6.4.2

Please refer to CHANGELOG.md for details.

Changelog

Sourced from vite's changelog.

6.4.2 (2026-04-06)

• fix: apply server.fs check to env transport (#22159) (#22163) (fe28e47), closes #22159 #22163
• fix: avoid path traversal with optimize deps sourcemap handler (#22161) (ca4da5d), closes #22161

Commits

• 6b3fad0 release: v6.4.2
• ca4da5d fix: avoid path traversal with optimize deps sourcemap handler (#22161)
• fe28e47 fix: apply server.fs check to env transport (#22159) (#22163)
• 5487f4f release: v6.4.1
• 1114b5d fix(dev): trim trailing slash before server.fs.deny check (#20968) (#20969)
• f12697c release: v6.4.0
• ca6455e feat: allow passing down resolved config to vite's createServer (#20932)
• 0e173d8 release: v6.3.7
• c59a222 fix(esbuild): inject esbuild helpers correctly for esbuild 0.25.9+ (#20940)
• 3f337c5 release: v6.3.6
• Additional commits viewable in compare view

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[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.