chore(deps): update dependency eslint-plugin-react to v7.21.1

Author: renovate-bot

package-lock.json

@@ -147,7 +147,7 @@
 		"eslint-loader": "3.0.0",
 		"eslint-plugin-import": "2.18.2",
 		"eslint-plugin-jsx-a11y": "6.2.3",
-		"eslint-plugin-react": "7.14.3",
+		"eslint-plugin-react": "7.21.1",
 		"extract-text-webpack-plugin": "4.0.0-beta.0",
 		"faker": "4.1.0",
 		"file-loader": "3.0.1",