chore(deps): bump js-yaml from 4.3.0 to 4.3.1 (#4218)

* chore(deps): bump js-yaml from 4.3.0 to 4.3.1

Bumps [js-yaml](https://github.com/nodeca/js-yaml) from 4.3.0 to 4.3.1.
- [Changelog](https://github.com/nodeca/js-yaml/blob/4.3.1/CHANGELOG.md)
- [Commits](nodeca/js-yaml@4.3.0...4.3.1)

---
updated-dependencies:
- dependency-name: js-yaml
  dependency-version: 4.3.1
  dependency-type: indirect
...

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

* Fix brace-expansion warning

* Fix audit warnings in demo app

* Fix audit warnings in website

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: David Rapson <david.rapson@citizensadvice.org.uk>

Author: dependabot[bot]