build(deps): bump postcss (#668)

Bumps the npm-dependencies group with 1 update: [postcss](https://github.com/postcss/postcss).


Updates `postcss` from 8.5.29 to 8.5.30
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.5.29...8.5.30)

---
updated-dependencies:
- dependency-name: postcss
  dependency-version: 8.5.30
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: npm-dependencies
...

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Author: dependabot[bot]

package-lock.json

@@ -20,7 +20,7 @@
     "phaser": "^4.2.1",
     "picocolors": "^1.1.1",
     "picomatch": "^4.0.7",
-    "postcss": "^8.5.29",
+    "postcss": "^8.5.30",
     "source-map-js": "^1.2.2",
     "tailwindcss": "^4.2.2",
     "tapable": "^2.3.3"