chore(deps-dev): bump postcss from 8.5.8 to 8.5.10

Bumps [postcss](https://github.com/postcss/postcss) from 8.5.8 to 8.5.10.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.5.8...8.5.10)

---
updated-dependencies:
- dependency-name: postcss
  dependency-version: 8.5.10
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

frontend/package.json

@@ -61,7 +61,7 @@
     "focus-trap-react": "^10.2.3",
     "jwt-decode": "^4.0.0",
     "moment": "^2.30.1",
-    "postcss": "^8.5.6",
+    "postcss": "^8.5.10",
     "prettier": "2.8.8",
     "react": "^18.3.1",
     "react-big-calendar": "^1.14.1",