* Bump katex from 0.8.0 to 0.9.0
Bumps [katex](https://github.com/glebm/katex-ruby) from 0.8.0 to 0.9.0.
- [Release notes](https://github.com/glebm/katex-ruby/releases)
- [Changelog](https://github.com/glebm/katex-ruby/blob/main/CHANGES.md)
- [Commits](https://github.com/glebm/katex-ruby/compare/v0.8.0...v0.9.0)
---
updated-dependencies:
- dependency-name: katex
dependency-type: direct:production
update-type: version-update:semver-minor
...
Signed-off-by: dependabot[bot] <support@github.com>
* Update test to "definitely invalid" syntax
Previously, \\c was invalid. However, it is now parseable for whatever reason.
This adds an unterminated { to raise a syntax error.
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Andy Z <17884966+Zhao-Andy@users.noreply.github.com>
