⬆️ Bump postcss from 8.3.8 to 8.3.11 (#1024)

Bumps [postcss](https://github.com/postcss/postcss) from 8.3.8 to 8.3.11.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](https://github.com/postcss/postcss/compare/8.3.8...8.3.11)

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

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

package.json

@@ -134,7 +134,7 @@
     "npm-run-all": "^4.1.5",
     "nyc": "^15.1.0",
     "playwright": "^1.15.2",
-    "postcss": "^8.3.6",
+    "postcss": "^8.3.11",
     "prettier": "^2.3.2",
     "prisma": "^2.30.2",
     "tailwindcss": "^2.2.16",