fix: upgrade rehype-pretty-code from 0.13.2 to 0.14.0

Snyk has created this PR to upgrade rehype-pretty-code from 0.13.2 to 0.14.0.

See this package in npm:
rehype-pretty-code

See this project in Snyk:
https://app.snyk.io/org/0xhylia/project/c43f2d04-1095-4fe6-b6e3-154af8044b23?utm_source=github&utm_medium=referral&page=upgrade-pr

package.json

@@ -31,7 +31,7 @@
     "passport": "^0.7.0",
     "passport-github": "^1.1.0",
     "querystring": "^0.2.1",
-    "rehype-pretty-code": "^0.13.0",
+    "rehype-pretty-code": "^0.14.0",
     "remark-toc": "^9.0.0"
   }
 }