build(deps-dev): bump html-validate from 4.12.0 to 4.13.1 (#186)

Bumps [html-validate](https://gitlab.com/html-validate/html-validate) from 4.12.0 to 4.13.1.
- [Release notes](https://gitlab.com/html-validate/html-validate/tags)
- [Changelog](https://gitlab.com/html-validate/html-validate/blob/master/CHANGELOG.md)
- [Commits](https://gitlab.com/html-validate/html-validate/compare/v4.12.0...v4.13.1)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]