Merge pull request #66 from diffhq/renovate/react-helmet-6.x

Update dependency react-helmet to v6

Author: Jeddf

package-lock.json

@@ -15,7 +15,7 @@
     "prop-types": "15.7.2",
     "react": "16.12.0",
     "react-dom": "16.12.0",
-    "react-helmet": "5.2.1",
+    "react-helmet": "6.1.0",
     "styled-components": "4.4.1"
   },
   "scripts": {