Bump postcss from 8.4.49 to 8.5.1 (#10681)

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.49 to 8.5.1.
- [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/8.4.49...8.5.1)

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

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

package.json

@@ -113,7 +113,7 @@
     "name-suggestion-index": "~6.0",
     "npm-run-all": "^4.0.0",
     "osm-community-index": "~5.9.0",
-    "postcss": "^8.4.49",
+    "postcss": "^8.5.1",
     "postcss-selector-prepend": "^0.5.0",
     "shelljs": "^0.8.0",
     "shx": "^0.3.0",