Bump katex from 0.13.11 to 0.13.13

Bumps [katex](https://github.com/KaTeX/KaTeX) from 0.13.11 to 0.13.13.
- [Release notes](https://github.com/KaTeX/KaTeX/releases)
- [Changelog](https://github.com/KaTeX/KaTeX/blob/master/CHANGELOG.md)
- [Commits](https://github.com/KaTeX/KaTeX/compare/v0.13.11...v0.13.13)

---
updated-dependencies:
- dependency-name: katex
  dependency-type: direct:development
  update-type: version-update:semver-patch
...
Signed-off-by: dependabot[bot] <support@github.com>

yarn.lock

@@ -5278,9 +5278,9 @@ karma@^6.0.1:
     yargs "^16.1.1"
 
 katex@^0.13.0:
-  version "0.13.11"
-  resolved "https://registry.yarnpkg.com/katex/-/katex-0.13.11.tgz#66138ebf173f25ef130cd3a3ea3ea1d12a3f1362"
-  integrity sha512-yJBHVIgwlAaapzlbvTpVF/ZOs8UkTj/sd46Fl8+qAf2/UiituPYVeapVD8ADZtqyRg/qNWUKt7gJoyYVWLrcXw==
+  version "0.13.13"
+  resolved "https://registry.yarnpkg.com/katex/-/katex-0.13.13.tgz#15a796e95516869bc6d483443b58b2df872ee40f"
+  integrity sha512-cCMcil4jwMm7behpXGiQfXJA29sko/Gd/26iCsr53Dv5Jn2iHbHyEb14dm9uVrIijUXx6Zz1WhlFhHE6DckvkQ==
   dependencies:
     commander "^6.0.0"