📌 bump katex from 0.18.4 to 0.18.6

Bumps [katex](https://github.com/KaTeX/KaTeX) from 0.18.4 to 0.18.6.
- [Release notes](https://github.com/KaTeX/KaTeX/releases)
- [Changelog](https://github.com/KaTeX/KaTeX/blob/main/CHANGELOG.md)
- [Commits](https://github.com/KaTeX/KaTeX/compare/v0.18.4...v0.18.6)

---
updated-dependencies:
- dependency-name: katex
  dependency-version: 0.18.6
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

package.json

@@ -40,7 +40,7 @@
     "@tailwindcss/typography": "^0.5.20",
     "chart.js": "^4.5.1",
     "fuse.js": "~7.5.0",
-    "katex": "^0.18.4",
+    "katex": "^0.18.6",
     "lite-youtube-embed": "^0.3.4",
     "medium-zoom": "^1.1.0",
     "mermaid": "^11.17.2",