Bump vue from 3.5.18 to 3.5.20 in /docs (#669)

Bumps [vue](https://github.com/vuejs/core) from 3.5.18 to 3.5.20.
- [Release notes](https://github.com/vuejs/core/releases)
- [Changelog](https://github.com/vuejs/core/blob/main/CHANGELOG.md)
- [Commits](vuejs/core@v3.5.18...v3.5.20)

---
updated-dependencies:
- dependency-name: vue
  dependency-version: 3.5.20
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

docs/package-lock.json

@@ -8,6 +8,6 @@
   "author": "Cyrill Püntener",
   "dependencies": {
     "vitepress": "^1.6.4",
-    "vue": "^3.5.18"
+    "vue": "^3.5.20"
   }
 }