Update Node version required

.nvmrc

@@ -1 +1 @@
-v20.6
+v20.8

README.md

@@ -35,7 +35,7 @@ To run a local version of this project, please follow these simple steps.
 
 ### Prerequisites
 
--   Node.js (Version: >=20.6)
+-   Node.js (Version: >=20.8)
   - Use nvm for easy Node management
 -   Bun (Version: >=1.2.1)
   - We use a text-based lockfile which isn't supported below 1.2.1

packages/icons/bin/gen-list.js

@@ -1,5 +1,4 @@
 import fs from 'fs/promises';
-import { existsSync } from 'fs';
 import path from 'path';
 import url from 'url';