Upgrade Node v14 to v16

Author: jeffibm

docs/developer_setup.md

@@ -12,7 +12,7 @@ Logging in to the SUI requires a running instance of ManageIQ. Instructions on h
   ```
   git clone [email protected]:ManageIQ/manageiq-ui-service.git
   ```
-- Have nodejs **v14.x** and npm **6.x.x** installed (npm should be installed with NodeJS)
+- Have nodejs **v16.x** and npm **8.x.x** installed (npm should be installed with NodeJS)
 - If using [nvm](https://github.com/creationix/nvm) you can ensure you are using the correct node version with `nvm use`
 - Have yarn (^v1.0.1) globally installed.
   ```

package.json

@@ -134,8 +134,8 @@
     "> 5%"
   ],
   "engines": {
-    "node": ">= 14.0.0",
-    "npm": ">= 6.0.0"
+    "node": ">= 16.0.0",
+    "npm": ">= 8.0.0"
   },
   "packageManager": "[email protected]",
   "resolutions": {