chore(ci): bump html-validate from 9.0.1 to 9.1.0

Bumps [html-validate](https://gitlab.com/html-validate/html-validate) from 9.0.1 to 9.1.0.
- [Release notes](https://gitlab.com/html-validate/html-validate/tags)
- [Commits](https://gitlab.com/html-validate/html-validate/compare/v9.0.1...v9.1.0)

---
updated-dependencies:
- dependency-name: html-validate
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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