Bump postcss from 8.4.47 to 8.4.49 (#10537)

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.47 to 8.4.49.
- [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/8.4.47...8.4.49)

---
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

@@ -113,7 +113,7 @@
     "name-suggestion-index": "~6.0",
     "npm-run-all": "^4.0.0",
     "osm-community-index": "~5.8.1",
-    "postcss": "^8.4.47",
+    "postcss": "^8.4.49",
     "postcss-selector-prepend": "^0.5.0",
     "shelljs": "^0.8.0",
     "shx": "^0.3.0",