Bump vitepress from 1.0.0-rc.25 to 1.0.0-rc.40

Bumps [vitepress](https://github.com/vuejs/vitepress) from 1.0.0-rc.25 to 1.0.0-rc.40.
- [Release notes](https://github.com/vuejs/vitepress/releases)
- [Changelog](https://github.com/vuejs/vitepress/blob/main/CHANGELOG.md)
- [Commits](vuejs/vitepress@v1.0.0-rc.25...v1.0.0-rc.40)

---
updated-dependencies:
- dependency-name: vitepress
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

package.json

@@ -21,7 +21,7 @@
     "markdown-it-imsize": "^2.0.1",
     "medium-zoom": "^1.0.8",
     "resolve-accept-language": "^2.1.0",
-    "vitepress": "^1.0.0-rc.25"
+    "vitepress": "^1.0.0-rc.40"
   },
   "dependencies": {}
 }