Build(deps-dev): Bump postcss from 8.4.33 to 8.4.34 (#39652)

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.33 to 8.4.34.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.4.33...8.4.34)

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

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

package.json

@@ -140,7 +140,7 @@
     "lockfile-lint": "^4.12.1",
     "nodemon": "^3.0.3",
     "npm-run-all2": "^6.1.2",
-    "postcss": "^8.4.33",
+    "postcss": "^8.4.34",
     "postcss-cli": "^11.0.0",
     "rollup": "^4.9.6",
     "rollup-plugin-istanbul": "^5.0.0",