build(deps-dev): bump @vuepress/plugin-google-analytics (#835)

Bumps [@vuepress/plugin-google-analytics](https://github.com/vuejs/vuepress/tree/HEAD/packages/@vuepress/plugin-google-analytics) from 2.0.0-rc.0 to 2.0.0-rc.30.
- [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-google-analytics)

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

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package.json

@@ -10,7 +10,7 @@
   },
   "devDependencies": {
     "@vuepress/client": "2.0.0-rc.0",
-    "@vuepress/plugin-google-analytics": "2.0.0-rc.0",
+    "@vuepress/plugin-google-analytics": "2.0.0-rc.30",
     "vue": "^3.4.27",
     "vuepress": "2.0.0-rc.11",
     "vuepress-plugin-search-pro": "2.0.0-rc.11",