我的头像命令不支持discord.js v12上的gif格式

const Discord = require('discord.js');
const sharp = require('sharp');

const client = new Discord.Client();

client.on('ready', () => {
  console.log(`Logged in as ${client.user.tag}`);
});

client.on('message', async (message) => {
  if (message.content === '!avatar') {
    const user = message.author;
    const avatarURL = user.displayAvatarURL({ format: 'png', dynamic: true });

    // 使用Sharp库处理动态头像
    const image = await sharp(await fetch(avatarURL)).png().toBuffer();

    // 将处理后的头像发送到频道
    message.channel.send({ files: [image] });
  }
});

client.login('YOUR_DISCORD_TOKEN');