Bump shiki from 3.19.0 to 3.20.0

Bumps [shiki](https://github.com/shikijs/shiki/tree/HEAD/packages/shiki) from 3.19.0 to 3.20.0.
- [Release notes](https://github.com/shikijs/shiki/releases)
- [Commits](https://github.com/shikijs/shiki/commits/v3.20.0/packages/shiki)

---
updated-dependencies:
- dependency-name: shiki
  dependency-version: 3.20.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package.json

@@ -31,7 +31,7 @@
 		"glob": "^13.0.0",
 		"gray-matter": "^4.0.3",
 		"postcss": "^8.5.6",
-		"shiki": "^3.19.0",
+		"shiki": "^3.20.0",
 		"sitemap": "^8.0.0",
 		"solid-heroicons": "^3.2.4",
 		"solid-js": "^1.9.10",