build(deps-dev): bump vitepress from 1.0.0-alpha.61 to 1.0.0-alpha.64

Bumps [vitepress](https://github.com/vuejs/vitepress) from 1.0.0-alpha.61 to 1.0.0-alpha.64.
- [Release notes](https://github.com/vuejs/vitepress/releases)
- [Changelog](https://github.com/vuejs/vitepress/blob/main/CHANGELOG.md)
- [Commits](vuejs/vitepress@v1.0.0-alpha.61...v1.0.0-alpha.64)

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

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -82,7 +82,7 @@
         "ts-jest": "^27.1.4",
         "typeorm": "^0.3.12",
         "typescript": "^4.9.5",
-        "vitepress": "^1.0.0-alpha.61",
+        "vitepress": "^1.0.0-alpha.64",
         "vue": "^3.2.47"
     }
 }