chore(deps-dev): bump vitepress from 1.6.1 to 1.6.3 (#552)

Bumps [vitepress](https://github.com/vuejs/vitepress) from 1.6.1 to 1.6.3.
- [Release notes](https://github.com/vuejs/vitepress/releases)
- [Changelog](https://github.com/vuejs/vitepress/blob/main/CHANGELOG.md)
- [Commits](vuejs/vitepress@v1.6.1...v1.6.3)

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

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

package.json

@@ -22,6 +22,6 @@
     "textlint": "14.4.2",
     "textlint-rule-en-capitalization": "2.0.3",
     "textlint-rule-ja-space-between-half-and-full-width": "2.4.2",
-    "vitepress": "1.6.1"
+    "vitepress": "1.6.3"
   }
 }