chore(deps-dev): bump postcss (#367)

Bumps the npm_and_yarn group with 1 update in the /components/frontend directory: [postcss](https://github.com/postcss/postcss).


Updates `postcss` from 8.5.6 to 8.5.12
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.5.6...8.5.12)

---
updated-dependencies:
- dependency-name: postcss
  dependency-version: 8.5.12
  dependency-type: direct:development
  dependency-group: npm_and_yarn
...

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Author: dependabot[bot]

components/frontend/package-lock.json

@@ -78,7 +78,7 @@
     "eslint-plugin-unicorn": "61.0.2",
     "husky": "9.1.7",
     "jsdom": "^27.4.0",
-    "postcss": "^8.5.6",
+    "postcss": "^8.5.12",
     "prettier": "3.6.2",
     "prettier-plugin-tailwindcss": "^0.7.1",
     "sass": "1.92.1",