chore(deps): update dependency postcss to v8.4.49

Author: renovate[bot]

package.json

@@ -166,7 +166,7 @@
     "mini-css-extract-plugin": "2.9.2",
     "nock": "13.5.6",
     "nprogress": "0.2.0",
-    "postcss": "8.4.48",
+    "postcss": "8.4.49",
     "postcss-loader": "8.1.1",
     "react-final-form": "6.5.9",
     "rimraf": "6.0.1",