Bumps [avto-dev/markdown-lint](https://github.com/avto-dev/markdown-lint) from v1.3.1 to v1.4.0. - [Release notes](https://github.com/avto-dev/markdown-lint/releases) - [Changelog](https://github.com/avto-dev/markdown-lint/blob/master/CHANGELOG.md) - [Commits](https://github.com/avto-dev/markdown-lint/compare/v1.3.1...6e6d4393411fbaae3c3aeee5661ba84a0352ed3b) Signed-off-by: dependabot[bot] <support@github.com>