chore(deps): update dependency eslint-plugin-react to v7.21.4

Author: renovate-bot

package-lock.json

@@ -40,7 +40,7 @@
     "eslint": "6.8.0",
     "eslint-plugin-cypress-dev": "3.0.2",
     "eslint-plugin-mocha": "6.3.0",
-    "eslint-plugin-react": "7.21.3",
+    "eslint-plugin-react": "7.21.4",
     "fs-extra": "9.0.1",
     "jsdom": "15.2.1",
     "lodash": "4.17.20",