build(deps): bump katex from 0.12.0 to 0.16.11 in /website

Bumps [katex](https://github.com/KaTeX/KaTeX) from 0.12.0 to 0.16.11.
- [Release notes](https://github.com/KaTeX/KaTeX/releases)
- [Changelog](https://github.com/KaTeX/KaTeX/blob/main/CHANGELOG.md)
- [Commits](KaTeX/KaTeX@v0.12.0...v0.16.11)

---
updated-dependencies:
- dependency-name: katex
  dependency-type: indirect
...

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

website/yarn.lock

@@ -6838,9 +6838,9 @@ katex@^0.12.0:
     commander "^2.19.0"
 
 katex@^0.16.0, katex@^0.16.10:
-  version "0.16.10"
-  resolved "https://registry.yarnpkg.com/katex/-/katex-0.16.10.tgz#6f81b71ac37ff4ec7556861160f53bc5f058b185"
-  integrity sha512-ZiqaC04tp2O5utMsl2TEZTXxa6WSC4yo0fv5ML++D3QZv/vx2Mct0mTlRx3O+uUkjfuAgOkzsCmq5MiUEsDDdA==
+  version "0.16.11"
+  resolved "https://registry.yarnpkg.com/katex/-/katex-0.16.11.tgz#4bc84d5584f996abece5f01c6ad11304276a33f5"
+  integrity sha512-RQrI8rlHY92OLf3rho/Ts8i/XvjgguEjOkO1BEXcU3N8BqPpSzBNwV/G0Ukr+P/l3ivvJUE/Fa/CwbS6HesGNQ==
   dependencies:
     commander "^8.3.0"