meta: bump shiki from 2.2.0 to 3.1.0 (#196)

Bumps [shiki](https://github.com/shikijs/shiki/tree/HEAD/packages/shiki) from 2.2.0 to 3.1.0.
- [Release notes](https://github.com/shikijs/shiki/releases)
- [Commits](https://github.com/shikijs/shiki/commits/v3.1.0/packages/shiki)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Diff for: package-lock.json

@@ -49,7 +49,7 @@
     "remark-rehype": "^11.1.1",
     "remark-stringify": "^11.0.0",
     "semver": "^7.7.1",
-    "shiki": "^2.2.0",
+    "shiki": "^3.1.0",
     "unified": "^11.0.5",
     "unist-builder": "^4.0.0",
     "unist-util-find-after": "^5.0.0",