chore(deps): bump katex from 0.16.27 to 0.16.28

Bumps [katex](https://github.com/KaTeX/KaTeX) from 0.16.27 to 0.16.28.
- [Release notes](https://github.com/KaTeX/KaTeX/releases)
- [Changelog](https://github.com/KaTeX/KaTeX/blob/main/CHANGELOG.md)
- [Commits](KaTeX/KaTeX@v0.16.27...v0.16.28)

---
updated-dependencies:
- dependency-name: katex
  dependency-version: 0.16.28
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

package.json

@@ -20,7 +20,7 @@
     "fumadocs-twoslash": "^3.1.12",
     "fumadocs-typescript": "^5.0.1",
     "fumadocs-ui": "16.4.7",
-    "katex": "^0.16.27",
+    "katex": "^0.16.28",
     "lucide-react": "^0.562.0",
     "next": "16.1.2",
     "react": "^19.2.3",