chore(deps-dev): bump postcss from 8.4.30 to 8.4.31 (#22)

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.30 to 8.4.31.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.4.30...8.4.31)

---
updated-dependencies:
- dependency-name: postcss
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -105,7 +105,7 @@
     "jest-mock": "^29.7.0",
     "lerna": "^7.2.0",
     "mock-aws-s3": "^4.0.2",
-    "postcss": "^8.3.11",
+    "postcss": "^8.4.31",
     "prettier": "^2.4.1",
     "rimraf": "^5.0.1",
     "rollup-plugin-cleanup": "^3.2.1",