Bump vite, vite-plugin-checker, vite-plugin-vue2 and vitest

Bumps [vite](https://github.com/vitejs/vite/tree/HEAD/packages/vite), [vite-plugin-checker](https://github.com/fi3ework/vite-plugin-checker), [vite-plugin-vue2](https://github.com/underfin/vite-plugin-vue2) and [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest). These dependencies needed to be updated together.

Updates `vite` from 2.9.18 to 6.2.5
- [Release notes](https://github.com/vitejs/vite/releases)
- [Changelog](https://github.com/vitejs/vite/blob/v6.2.5/packages/vite/CHANGELOG.md)
- [Commits](https://github.com/vitejs/vite/commits/v6.2.5/packages/vite)

Updates `vite-plugin-checker` from 0.4.6 to 0.9.1
- [Release notes](https://github.com/fi3ework/vite-plugin-checker/releases)
- [Changelog](https://github.com/fi3ework/vite-plugin-checker/blob/main/CHANGELOG.md)
- [Commits](https://github.com/fi3ework/vite-plugin-checker/compare/vite-plugin-checker@0.4.6...vite-plugin-checker@0.9.1)

Updates `vite-plugin-vue2` from 2.0.1 to 2.0.3
- [Changelog](https://github.com/underfin/vite-plugin-vue2/blob/master/CHANGELOG.md)
- [Commits](underfin/vite-plugin-vue2@v2.0.1...v2.0.3)

Updates `vitest` from 0.22.1 to 3.1.1
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Commits](https://github.com/vitest-dev/vitest/commits/v3.1.1/packages/vitest)

---
updated-dependencies:
- dependency-name: vite
  dependency-version: 6.2.5
  dependency-type: direct:development
- dependency-name: vite-plugin-checker
  dependency-version: 0.9.1
  dependency-type: direct:development
- dependency-name: vite-plugin-vue2
  dependency-version: 2.0.3
  dependency-type: direct:development
- dependency-name: vitest
  dependency-version: 3.1.1
  dependency-type: direct:development
...

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Author: dependabot[bot]