chore(deps): update devdependency marked to v16

Author: renovate[bot]

package.json

@@ -11,7 +11,7 @@
     "build": "rimraf dist/ && vitepress build && pnpm -r --parallel run build"
   },
   "devDependencies": {
-    "marked": "^12.0.1",
+    "marked": "^16.1.1",
     "rimraf": "^5.0.5",
     "vitepress": "1.0.0-rc.39",
     "slidev-theme-geist": "^0.8.1"