chore(deps): pin dependency vitepress to 1.0.0-beta.7

Author: renovate[bot]

package.json

@@ -56,7 +56,7 @@
     "typescript": "5.2.2",
     "unplugin-vue-components": "0.25.2",
     "vite": "4.5.0",
-    "vitepress": "^1.0.0-beta.7",
+    "vitepress": "1.0.0-beta.7",
     "vitest": "0.34.6",
     "vue": "3.3.7",
     "vue-class-component": "8.0.0-rc.1",