Bump async loader (#1337)

* Bump async-loader package version in CLI

* Change minimum required node version to v8

Author: reznord

README.md

@@ -45,7 +45,7 @@
 
 ### Installation
 
-> **Important**: [Node.js](https://nodejs.org/en/) > V6.x is a minimum requirement.
+> **Important**: [Node.js](https://nodejs.org/en/) > V8.x is a minimum requirement.
 
 ```sh
 $ npm install -g preact-cli
@@ -373,7 +373,6 @@ The default templates comes with a `.css` file for each component. You can start
 
 Automatic code splitting is applied to all JavaScript and TypeScript files in the following locations:
 
-
 <table>
 <thead><tr><th>Pattern</th><th>Examples</th></tr></thead>
 <tbody>

packages/cli/package.json

@@ -78,7 +78,7 @@
     "@babel/plugin-transform-react-jsx": "^7.9.0",
     "@babel/preset-env": "^7.9.0",
     "@babel/preset-typescript": "^7.9.0",
-    "@preact/async-loader": "^3.0.0-rc.12",
+    "@preact/async-loader": "^3.0.0",
     "@prefresh/webpack": "^0.8.1",
     "autoprefixer": "^9.6.0",
     "babel-esm-plugin": "^0.9.0",