chore(deps): update dependency postcss to v8.4.31 [security]

Author: renovate[bot]

package-lock.json

@@ -104,7 +104,7 @@
     "jest-canvas-mock": "^2.4.0",
     "jest-localstorage-mock": "^2.4.22",
     "patch-package": "8.0.0",
-    "postcss": "8.4.24",
+    "postcss": "8.4.31",
     "react-test-renderer": "^17.0.2",
     "resize-observer-polyfill": "1.5.1",
     "ts-jest": "^29.0.0"