Update css

Author: renovate[bot]

package.json

@@ -264,7 +264,7 @@
         "modernizr": "^3.12.0",
         "node-fetch": "^2.6.7",
         "playwright-core": "^1.51.0",
-        "postcss": "8.4.46",
+        "postcss": "8.5.3",
         "postcss-easings": "^4.0.0",
         "postcss-hexrgba": "2.1.0",
         "postcss-import": "16.1.0",