chore: remove unctx from dependencies

Author: farnabaz

package.json

@@ -71,7 +71,6 @@
     "shiki-es": "^0.1.2",
     "slugify": "^1.6.5",
     "ufo": "^0.8.5",
-    "unctx": "^1.1.4",
     "unified": "^10.1.2",
     "unist-builder": "^3.0.0",
     "unist-util-position": "^4.0.3",