Bump react-dev-utils from 4.2.2 to 11.0.4

Bumps [react-dev-utils](https://github.com/facebook/create-react-app/tree/HEAD/packages/react-dev-utils) from 4.2.2 to 11.0.4.
- [Release notes](https://github.com/facebook/create-react-app/releases)
- [Changelog](https://github.com/facebook/create-react-app/blob/master/CHANGELOG-1.x.md)
- [Commits](https://github.com/facebook/create-react-app/commits/HEAD/packages/react-dev-utils)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package.json

@@ -57,7 +57,7 @@
     "postcss-loader": "2.0.6",
     "promise": "8.0.1",
     "react": "^15.6.1",
-    "react-dev-utils": "^4.0.0",
+    "react-dev-utils": "^11.0.4",
     "react-dom": "^15.6.1",
     "react-leaflet": "^1.6.4",
     "style-loader": "0.18.2",