Bumps [autoprefixer](https://github.com/postcss/autoprefixer) from 9.4.8 to 9.4.9.
- [Release notes](https://github.com/postcss/autoprefixer/releases)
- [Changelog](https://github.com/postcss/autoprefixer/blob/master/CHANGELOG.md)
- [Commits](https://github.com/postcss/autoprefixer/compare/9.4.8...9.4.9)
Signed-off-by: dependabot[bot] <support@dependabot.com>