chore(deps): Bump vite, vuepress, vuepress-plugin-seo2 and vuepress-plugin-sitemap2

Removes [vite](https://github.com/vitejs/vite/tree/HEAD/packages/vite). It's no longer used after updating ancestor dependencies [vite](https://github.com/vitejs/vite/tree/HEAD/packages/vite), [vuepress](https://github.com/vuejs/vuepress/tree/HEAD/packages/vuepress), [vuepress-plugin-seo2](https://github.com/vuepress-theme-hope/vuepress-theme-hope/tree/HEAD/packages/seo2) and [vuepress-plugin-sitemap2](https://github.com/vuepress-theme-hope/vuepress-theme-hope/tree/HEAD/packages/sitemap2). These dependencies need to be updated together.


Removes `vite`

Updates `vuepress` from 2.0.0-beta.66 to 2.0.0-rc.26
- [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)

Updates `vuepress-plugin-seo2` from 2.0.0-beta.209 to 2.0.0-rc.16
- [Release notes](https://github.com/vuepress-theme-hope/vuepress-theme-hope/releases)
- [Changelog](https://github.com/vuepress-theme-hope/vuepress-theme-hope/blob/v2.0.0-rc.16/CHANGELOG.md)
- [Commits](https://github.com/vuepress-theme-hope/vuepress-theme-hope/commits/v2.0.0-rc.16/packages/seo2)

Updates `vuepress-plugin-sitemap2` from 2.0.0-beta.234 to 2.0.0-rc.16
- [Release notes](https://github.com/vuepress-theme-hope/vuepress-theme-hope/releases)
- [Changelog](https://github.com/vuepress-theme-hope/vuepress-theme-hope/blob/v2.0.0-rc.16/CHANGELOG.md)
- [Commits](https://github.com/vuepress-theme-hope/vuepress-theme-hope/commits/v2.0.0-rc.16/packages/sitemap2)

---
updated-dependencies:
- dependency-name: vite
  dependency-version: 
  dependency-type: indirect
- dependency-name: vuepress
  dependency-version: 2.0.0-rc.26
  dependency-type: direct:production
- dependency-name: vuepress-plugin-seo2
  dependency-version: 2.0.0-rc.16
  dependency-type: direct:production
- dependency-name: vuepress-plugin-sitemap2
  dependency-version: 2.0.0-rc.16
  dependency-type: direct:production
...

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

Author: dependabot[bot]