Merge pull request github#54 from github/update-postcss

Add override to avoid vulnerable version of postcss

Author: jshorty

package-lock.json

@@ -13,7 +13,8 @@
   },
   "overrides": {
     "@svgr/webpack": "^8.0.1",
-    "@adobe/css-tools": "^4.3.1"
+    "@adobe/css-tools": "^4.3.1",
+    "postcss": "^8.4.31"
   },
   "scripts": {
     "start": "BROWSER=none WDS_SOCKET_PORT=0 react-scripts start",