fix(deps): update dependency @mdit/plugin-spoiler to ^0.16.0

Author: renovate[bot]

package.json

@@ -60,7 +60,7 @@
     "@mdit/plugin-img-mark": "^0.13.1",
     "@mdit/plugin-img-size": "^0.13.1",
     "@mdit/plugin-mark": "^0.13.1",
-    "@mdit/plugin-spoiler": "^0.13.1",
+    "@mdit/plugin-spoiler": "^0.16.0",
     "@mdit/plugin-sub": "^0.13.1",
     "@mdit/plugin-sup": "^0.13.1",
     "@radix-icons/vue": "^1.0.0",