prerequisites: update node version to 14 (#675)

Author: aspeddro

pages/docs/manual/latest/installation.mdx

@@ -8,7 +8,7 @@ canonical: "/docs/manual/latest/installation"
 
 ## Prerequisites
 
-- [Node.js](https://nodejs.org/) version >= 10
+- [Node.js](https://nodejs.org/) version >= 14
 - [npm](https://docs.npmjs.com/cli/) (which comes with Node.js) or [Yarn](https://yarnpkg.com/)
 
 ## New Project