cmark.ex

1de25653 - Bump credo from 1.5.3 to 1.5.4

Bump credo from 1.5.3 to 1.5.4 Bumps [credo](https://github.com/rrrene/credo) from 1.5.3 to 1.5.4. - [Release notes](https://github.com/rrrene/credo/releases) - [Changelog](https://github.com/rrrene/credo/blob/master/CHANGELOG.md) - [Commits](https://github.com/rrrene/credo/compare/v1.5.3...v1.5.4) Signed-off-by: dependabot-preview[bot] <support@dependabot.com>