Bump js-yaml from 4.3.1 to 5.4.3

Bumps [js-yaml](https://github.com/nodeca/js-yaml) from 4.3.1 to 5.4.3.
- [Changelog](https://github.com/nodeca/js-yaml/blob/master/CHANGELOG.md)
- [Commits](nodeca/js-yaml@4.3.1...5.4.3)

---
updated-dependencies:
- dependency-name: js-yaml
  dependency-version: 5.4.3
  dependency-type: indirect
...

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

Author: dependabot[bot]