chore: update banner

Author: KagChi

README.md

@@ -1,6 +1,6 @@
 <div align="center">
 
-![Kirishima Banner](https://cdn.discordapp.com/attachments/891939988088975372/931079377771450388/kirishima-ship-banner.png)
+![Kirishima Banner](https://i.kagchi.my.id/kirishima-ship-banner.jpg)
 
 # @kirishima/fetch
 
@@ -39,4 +39,4 @@ const data = await fetch<JsonPlaceholderResponse>('https://jsonplaceholder.typic
 
 // Do something with the data
 console.log(data.userId);
-```
+```