chore(deps-dev): bump @shikijs/twoslash from 3.23.0 to 4.2.0

Bumps [@shikijs/twoslash](https://github.com/shikijs/shiki/tree/HEAD/packages/twoslash) from 3.23.0 to 4.2.0.
- [Release notes](https://github.com/shikijs/shiki/releases)
- [Commits](https://github.com/shikijs/shiki/commits/v4.2.0/packages/twoslash)

---
updated-dependencies:
- dependency-name: "@shikijs/twoslash"
  dependency-version: 4.2.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

docs/package.json

@@ -31,7 +31,7 @@
     "twoslash": "^0.3.4"
   },
   "devDependencies": {
-    "@shikijs/twoslash": "^3.14.0",
+    "@shikijs/twoslash": "^4.2.0",
     "@tailwindcss/postcss": "^4.1.12",
     "@types/mdx": "^2.0.13",
     "@types/node": "25.9.4",