fix(starters): Upgrade react-helmet in default starter (#23059)

Author: karlhorky

starters/default/package-lock.json

@@ -9,14 +9,14 @@
     "gatsby-image": "^2.3.1",
     "gatsby-plugin-manifest": "^2.3.3",
     "gatsby-plugin-offline": "^3.1.2",
-    "gatsby-plugin-react-helmet": "^3.2.1",
+    "gatsby-plugin-react-helmet": "^3.2.2",
     "gatsby-plugin-sharp": "^2.5.3",
     "gatsby-source-filesystem": "^2.2.2",
     "gatsby-transformer-sharp": "^2.4.3",
     "prop-types": "^15.7.2",
     "react": "^16.12.0",
     "react-dom": "^16.12.0",
-    "react-helmet": "^5.2.1"
+    "react-helmet": "^6.0.0"
   },
   "devDependencies": {
     "prettier": "2.0.4"

starters/default/package.json

@@ -7,7 +7,7 @@
 
 import React from "react"
 import PropTypes from "prop-types"
-import Helmet from "react-helmet"
+import { Helmet } from "react-helmet"
 import { useStaticQuery, graphql } from "gatsby"
 
 function SEO({ description, lang, meta, title }) {