Update dependency vitepress to v1.0.0-rc.28

Author: renovate[bot]

package.json

@@ -10,7 +10,7 @@
   "author": "Adarsh Madrecha <adarshmadrecha@yahoo.com>",
   "license": "GPL3",
   "dependencies": {
-    "vitepress": "1.0.0-rc.24",
+    "vitepress": "1.0.0-rc.28",
     "vue": "3.3.8"
   },
   "pnpm": {