chore(deps): update dependency postcss to ^8.4.29 (#554)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

examples/package-lock.json

@@ -21,7 +21,7 @@
     "@types/styled-components": "^5.1.26",
     "@vitejs/plugin-react": "^4.0.4",
     "autoprefixer": "^10.4.15",
-    "postcss": "^8.4.28",
+    "postcss": "^8.4.29",
     "tailwindcss": "^3.3.3",
     "typescript": "^5.2.2",
     "vite": "^4.4.9"