Refresh icons urls to purge cache of 500 (#2483)

Author: SamyPesse

.changeset/fast-timers-sniff.md

@@ -0,0 +1,5 @@
+---
+'@gitbook/icons': patch
+---
+
+Update version for static assets to fix invalid caching

packages/icons/src/IconsProvider.tsx

@@ -3,7 +3,7 @@
 import * as React from 'react';
 import { IconStyle } from './types';
 
-const version = 1;
+const version = 2;
 
 export interface IconsAssetsLocation {
     /** Rroot url where the icon assets are served */