Bump autoprefixer from 9.8.6 to 10.0.4 (#102)

* Bump autoprefixer from 10.0.2 to 10.0.4

Bumps [autoprefixer](https://github.com/postcss/autoprefixer) from 10.0.2 to 10.0.4.
- [Release notes](https://github.com/postcss/autoprefixer/releases)
- [Changelog](https://github.com/postcss/autoprefixer/blob/master/CHANGELOG.md)
- [Commits](postcss/autoprefixer@10.0.2...10.0.4)

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

* update postcss

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Cassidy Bandy <31383109+c-bandy@users.noreply.github.com>