Bump postcss from 8.3.9 to 8.4.32

Bumps [postcss](https://github.com/postcss/postcss) from 8.3.9 to 8.4.32.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.3.9...8.4.32)

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

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

package.json

@@ -162,7 +162,7 @@
     "nodemon": "^2.0.12",
     "npm-merge-driver-install": "^2.0.1",
     "object-hash": "^2.2.0",
-    "postcss": "^8.3.9",
+    "postcss": "^8.4.32",
     "prettier": "^2.4.1",
     "replace": "^1.2.1",
     "rimraf": "^3.0.2",