chore(deps): bump js-yaml and markdownlint-cli2

Bumps [js-yaml](https://github.com/nodeca/js-yaml) to 4.1.1 and updates ancestor dependency [markdownlint-cli2](https://github.com/DavidAnson/markdownlint-cli2). These dependencies need to be updated together.


Updates `js-yaml` from 4.1.0 to 4.1.1
- [Changelog](https://github.com/nodeca/js-yaml/blob/master/CHANGELOG.md)
- [Commits](nodeca/js-yaml@4.1.0...4.1.1)

Updates `markdownlint-cli2` from 0.16.0 to 0.19.0
- [Changelog](https://github.com/DavidAnson/markdownlint-cli2/blob/main/CHANGELOG.md)
- [Commits](DavidAnson/markdownlint-cli2@v0.16.0...v0.19.0)

---
updated-dependencies:
- dependency-name: js-yaml
  dependency-version: 4.1.1
  dependency-type: indirect
- dependency-name: markdownlint-cli2
  dependency-version: 0.19.0
  dependency-type: direct:development
...

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

Author: dependabot[bot]