Update dependency react-app-polyfill to v1.0.6

Author: renovate[bot]

package.json

@@ -73,7 +73,7 @@
     "postcss-normalize": "7.0.1",
     "postcss-preset-env": "6.7.0",
     "postcss-safe-parser": "4.0.1",
-    "react-app-polyfill": "1.0.4",
+    "react-app-polyfill": "1.0.6",
     "react-dev-utils": "9.1.0",
     "resolve": "1.12.0",
     "resolve-url-loader": "3.1.0",