build(deps-dev): bump postcss from 8.4.38 to 8.4.39

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.38 to 8.4.39.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.4.38...8.4.39)

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

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

Author: dependabot[bot]

package.json

@@ -37,7 +37,7 @@
     "npm-check-updates": "16.14.20",
     "npm-package-json-lint": "7.1.0",
     "npm-run-all": "4.1.5",
-    "postcss": "8.4.38",
+    "postcss": "8.4.39",
     "prettier": "3.3.2",
     "stylelint": "16.6.1",
     "stylelint-config-standard-scss": "13.1.0",

packages/components-react/package.json

@@ -57,7 +57,7 @@
     "jest-environment-jsdom": "29.7.0",
     "next": "14.2.4",
     "npm-run-all": "4.1.5",
-    "postcss": "8.4.38",
+    "postcss": "8.4.39",
     "react": "18.3.1",
     "react-dom": "18.3.1",
     "rimraf": "5.0.7",