Bump vuepress-plugin-search-pro from 2.0.0-rc.30 to 2.0.0-rc.31

Bumps [vuepress-plugin-search-pro](https://github.com/vuepress-theme-hope/vuepress-theme-hope/tree/HEAD/packages/search-pro) from 2.0.0-rc.30 to 2.0.0-rc.31.
- [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.31/packages/search-pro)

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

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

package.json

@@ -14,7 +14,7 @@
     "@vuepress/bundler-vite": "^2.0.0-rc.7",
     "vue": "^3.4.21",
     "vuepress": "2.0.0-rc.8",
-    "vuepress-plugin-search-pro": "^2.0.0-rc.27",
+    "vuepress-plugin-search-pro": "^2.0.0-rc.31",
     "vuepress-theme-hope": "2.0.0-rc.30"
   }
 }