chore: bump vitepress

Author: yyx990803

package.json

@@ -15,7 +15,7 @@
     "@vue/theme": "^2.3.0",
     "dynamics.js": "^1.1.5",
     "gsap": "^3.12.5",
-    "vitepress": "^1.4.3",
+    "vitepress": "^1.6.4",
     "vue": "^3.5.12"
   },
   "devDependencies": {