Bump autoprefixer from 10.2.6 to 10.3.1 (#1329)

Bumps [autoprefixer](https://github.com/postcss/autoprefixer) from 10.2.6 to 10.3.1.
- [Release notes](https://github.com/postcss/autoprefixer/releases)
- [Changelog](https://github.com/postcss/autoprefixer/blob/main/CHANGELOG.md)
- [Commits](https://github.com/postcss/autoprefixer/compare/10.2.6...10.3.1)

---
updated-dependencies:
- dependency-name: autoprefixer
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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