fix: package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-REACTDEVUTILS-1083268

Author: snyk-bot

package.json

@@ -41,7 +41,7 @@
 		"node-sass-utils": "^1.1.2",
 		"postcss": "^8.2.8",
 		"react": "^16.14.0",
-		"react-dev-utils": "4.2.3",
+		"react-dev-utils": "11.0.4",
 		"react-dom": "^16.8.1",
 		"react-helmet": "^5.2.0",
 		"react-html-parser": "^2.0.2",