build(deps): bump shiki from 3.23.0 to 4.0.2

Bumps [shiki](https://github.com/shikijs/shiki/tree/HEAD/packages/shiki) from 3.23.0 to 4.0.2.
- [Release notes](https://github.com/shikijs/shiki/releases)
- [Commits](https://github.com/shikijs/shiki/commits/v4.0.2/packages/shiki)

---
updated-dependencies:
- dependency-name: shiki
  dependency-version: 4.0.2
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

apps/dashboard/package.json

@@ -87,7 +87,7 @@
     "react-qrcode-logo": "^4.0.0",
     "react-textarea-autosize": "^8.5.9",
     "recharts": "^2.15.4",
-    "shiki": "^3.23.0",
+    "shiki": "^4.0.2",
     "sonner": "^2.0.7",
     "streamdown": "^2.5.0",
     "tailwind-merge": "^3.5.0",

apps/docs/package.json

@@ -79,7 +79,7 @@
     "remark-mdx": "^3.1.1",
     "remark-stringify": "^11.0.0",
     "resend": "^6.12.0",
-    "shiki": "^3.23.0",
+    "shiki": "^4.0.2",
     "sonner": "^2.0.7",
     "tailwind-merge": "^3.5.0",
     "use-sound": "^5.0.0",