polyfill.js

* chore(deps-dev): bump prettier from 2.8.8 to 3.0.0

Bumps [prettier](https://github.com/prettier/prettier) from 2.8.8 to 3.0.0.
- [Release notes](https://github.com/prettier/prettier/releases)
- [Changelog](https://github.com/prettier/prettier/blob/main/CHANGELOG.md)
- [Commits](https://github.com/prettier/prettier/compare/2.8.8...3.0.0

)

---
updated-dependencies:
- dependency-name: prettier
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

* reformat all the things (prettier 3)

* update tests to await calls to prettier.format()

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: chris48s <git@chris-shaw.dev>