build(deps-dev): bump postcss from 8.4.27 to 8.4.29 (#852)

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.27 to 8.4.29.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.4.27...8.4.29)

---
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

@@ -23,7 +23,7 @@
     "jest-preset-stylelint": "^6.1.1",
     "lint-staged": "^14.0.1",
     "np": "^8.0.4",
-    "postcss": "^8.4.27",
+    "postcss": "^8.4.29",
     "postcss-less": "^6.0.0",
     "postcss-scss": "^4.0.7",
     "prettier": "^3.0.0",