build(deps-dev): bump @vuepress/client from 2.0.0-rc.7 to 2.0.0-rc.8

Bumps [@vuepress/client](https://github.com/vuepress/core) from 2.0.0-rc.7 to 2.0.0-rc.8.
- [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.7...v2.0.0-rc.8)

---
updated-dependencies:
- dependency-name: "@vuepress/client"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

package.json

@@ -18,7 +18,7 @@
   "devDependencies": {
     "@types/node": "^20.11.17",
     "@vuepress/bundler-vite": "2.0.0-rc.7",
-    "@vuepress/client": "2.0.0-rc.7",
+    "@vuepress/client": "2.0.0-rc.8",
     "@vuepress/plugin-catalog": "2.0.0-rc.14",
     "@vuepress/plugin-copy-code": "2.0.0-rc.14",
     "@vuepress/plugin-shiki": "2.0.0-rc.14",