Update dependency postcss to v8.4.32

Author: renovate[bot]

package.json

@@ -34,7 +34,7 @@
     "eslint-plugin-prettier": "4.2.1",
     "eslint-plugin-solid": "0.13.0",
     "lefthook": "1.5.5",
-    "postcss": "8.4.31",
+    "postcss": "8.4.32",
     "prettier": "2.8.8",
     "prettier-plugin-astro": "0.12.2",
     "typescript": "5.2.2",