Bump @vuepress/theme-default from 2.0.0-rc.56 to 2.0.0-rc.57

Bumps [@vuepress/theme-default](https://github.com/vuejs/vuepress/tree/HEAD/packages/@vuepress/theme-default) from 2.0.0-rc.56 to 2.0.0-rc.57.
- [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/theme-default)

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

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

package.json

@@ -21,7 +21,7 @@
   "devDependencies": {
     "@vuepress/bundler-vite": "^2.0.0-rc.7",
     "@vuepress/plugin-search": "^2.0.0-rc.55",
-    "@vuepress/theme-default": "^2.0.0-rc.56",
+    "@vuepress/theme-default": "^2.0.0-rc.57",
     "sass-embedded": "^1.80.4",
     "vuepress": "^2.0.0-rc.18"
   }