fix(deps): update dependency vuepress-theme-hope to v2.0.0-rc.68

Author: renovate[bot]

package.json

@@ -18,7 +18,7 @@
     "reveal.js": "5.1.0",
     "vue": "3.5.12",
     "vuepress": "2.0.0-rc.9",
-    "vuepress-theme-hope": "2.0.0-rc.40"
+    "vuepress-theme-hope": "2.0.0-rc.68"
   },
   "devDependencies": {
     "markdownlint-cli": "0.43.0",