chore: update avatar

Author: iamkun

README.md

@@ -104,6 +104,10 @@ Support this project by becoming a sponsor. Your logo will show up here with a l
 
 [[Become a sponsor via Github](https://github.com/sponsors/iamkun/)] [[Become a sponsor via OpenCollective](https://opencollective.com/dayjs#sponsor)]
 
+<a href="https://github.com/alan-eu" target="_blank">
+  <img width="70" src="https://avatars.githubusercontent.com/u/18175329?s=52&v=4">
+</a>
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 <a href="https://www.exoflare.com/open-source/?utm_source=dayjs&utm_campaign=open_source" target="_blank">
   <img width="70" src="https://user-images.githubusercontent.com/17680888/162761622-1407a849-0c41-4591-8aa9-f98114ec2092.png">
 </a>