chore(deps-dev): bump the vuepress group with 6 updates

Bumps the vuepress group with 6 updates:

| Package | From | To |
| --- | --- | --- |
| [@vuepress/bundler-vite](https://github.com/vuepress/core) | `2.0.0-rc.27` | `2.0.0-rc.28` |
| [@vuepress/markdown](https://github.com/vuejs/vuepress/tree/HEAD/packages/@vuepress/markdown) | `2.0.0-rc.27` | `2.0.0-rc.28` |
| [@vuepress/plugin-search](https://github.com/vuejs/vuepress/tree/HEAD/packages/@vuepress/plugin-search) | `2.0.0-rc.126` | `2.0.0-rc.127` |
| [@vuepress/plugin-shiki](https://github.com/vuepress/vuepress-next) | `2.0.0-rc.126` | `2.0.0-rc.127` |
| [@vuepress/plugin-sitemap](https://github.com/vuepress/ecosystem/tree/HEAD/plugins/plugin-sitemap) | `2.0.0-rc.126` | `2.0.0-rc.127` |
| [@vuepress/theme-default](https://github.com/vuejs/vuepress/tree/HEAD/packages/@vuepress/theme-default) | `2.0.0-rc.126` | `2.0.0-rc.127` |


Updates `@vuepress/bundler-vite` from 2.0.0-rc.27 to 2.0.0-rc.28
- [Release notes](https://github.com/vuepress/core/releases)
- [Changelog](https://github.com/vuepress/core/blob/main/CHANGELOG.md)
- [Commits](vuepress/core@v2.0.0-rc.27...v2.0.0-rc.28)

Updates `@vuepress/markdown` from 2.0.0-rc.27 to 2.0.0-rc.28
- [Release notes](https://github.com/vuejs/vuepress/releases)
- [Changelog](https://github.com/vuejs/vuepress/blob/master/CHANGELOG.md)
- [Commits](https://github.com/vuejs/vuepress/commits/HEAD/packages/@vuepress/markdown)

Updates `@vuepress/plugin-search` from 2.0.0-rc.126 to 2.0.0-rc.127
- [Release notes](https://github.com/vuejs/vuepress/releases)
- [Changelog](https://github.com/vuejs/vuepress/blob/master/CHANGELOG.md)
- [Commits](https://github.com/vuejs/vuepress/commits/HEAD/packages/@vuepress/plugin-search)

Updates `@vuepress/plugin-shiki` from 2.0.0-rc.126 to 2.0.0-rc.127
- [Release notes](https://github.com/vuepress/vuepress-next/releases)
- [Changelog](https://github.com/vuepress/core/blob/main/CHANGELOG.md)
- [Commits](https://github.com/vuepress/vuepress-next/commits)

Updates `@vuepress/plugin-sitemap` from 2.0.0-rc.126 to 2.0.0-rc.127
- [Release notes](https://github.com/vuepress/ecosystem/releases)
- [Commits](https://github.com/vuepress/ecosystem/commits/v2.0.0-rc.127/plugins/plugin-sitemap)

Updates `@vuepress/theme-default` from 2.0.0-rc.126 to 2.0.0-rc.127
- [Release notes](https://github.com/vuejs/vuepress/releases)
- [Changelog](https://github.com/vuejs/vuepress/blob/master/CHANGELOG.md)
- [Commits](https://github.com/vuejs/vuepress/commits/HEAD/packages/@vuepress/theme-default)

---
updated-dependencies:
- dependency-name: "@vuepress/bundler-vite"
  dependency-version: 2.0.0-rc.28
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: vuepress
- dependency-name: "@vuepress/markdown"
  dependency-version: 2.0.0-rc.28
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: vuepress
- dependency-name: "@vuepress/plugin-search"
  dependency-version: 2.0.0-rc.127
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: vuepress
- dependency-name: "@vuepress/plugin-shiki"
  dependency-version: 2.0.0-rc.127
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: vuepress
- dependency-name: "@vuepress/plugin-sitemap"
  dependency-version: 2.0.0-rc.127
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: vuepress
- dependency-name: "@vuepress/theme-default"
  dependency-version: 2.0.0-rc.127
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: vuepress
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]