[v7] Update react-docgen to v5

CHANGELOG.md

@@ -4,6 +4,8 @@
 
 * Breaking
   * Remove the ability to include test evidence, this is covered now by a separate site report.
+  * Update minimum node version to node 10.
+  * Update react-docgen to ^5.3.0. This is a breaking change as react-docgen only supports node 8.10 and up.
 
 ## 6.30.0 - (September 11, 2020)
 

package.json

@@ -3,7 +3,7 @@
   "version": "6.30.0",
   "description": "Dynamically builds a react-hash-routed site based on site configuration, navigation configuration and component configuration.",
   "engines": {
-    "node": ">=8.9.2 <11"
+    "node": ">=10 <11"
   },
   "main": "index.js",
   "repository": {
@@ -120,7 +120,7 @@
     "prism-react-renderer": "^1.0.2",
     "prismjs": "^1.17.1",
     "prop-types": "^15.5.8",
-    "react-docgen": "^4.1.1",
+    "react-docgen": "^5.3.0",
     "react-intl": "^2.9.0",
     "react-router-dom": "^5.0.0",
     "rehype-slug": "^2.0.3",