chore(deps-dev): bump postcss in the npm-dev-dependencies group

Bumps the npm-dev-dependencies group with 1 update: [postcss](https://github.com/postcss/postcss).


Updates `postcss` from 8.4.47 to 8.4.48
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.4.47...8.4.48)

---
updated-dependencies:
- dependency-name: postcss
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: npm-dev-dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>