Bump vuepress-plugin-search-pro from 2.0.0-rc.23 to 2.0.0-rc.29

Bumps [vuepress-plugin-search-pro](https://github.com/vuepress-theme-hope/vuepress-theme-hope/tree/HEAD/packages/search-pro) from 2.0.0-rc.23 to 2.0.0-rc.29.
- [Release notes](https://github.com/vuepress-theme-hope/vuepress-theme-hope/releases)
- [Changelog](https://github.com/vuepress-theme-hope/vuepress-theme-hope/blob/main/CHANGELOG.md)
- [Commits](https://github.com/vuepress-theme-hope/vuepress-theme-hope/commits/v2.0.0-rc.29/packages/search-pro)

---
updated-dependencies:
- dependency-name: vuepress-plugin-search-pro
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>