chore(deps): bump katex from 0.16.8 to 0.16.9 (#6339)

Bumps [katex](https://github.com/KaTeX/KaTeX) from 0.16.8 to 0.16.9.
- [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/v0.16.8...v0.16.9)

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

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

package.json

@@ -123,7 +123,7 @@
     "jsdom": "^22.1.0",
     "jsonwebtoken": "^9.0.0",
     "jszip": "^3.10.1",
-    "katex": "^0.16.8",
+    "katex": "^0.16.9",
     "kbar": "0.1.0-beta.41",
     "koa": "^2.14.2",
     "koa-body": "^6.0.1",