Bug(discord): getGuildList等api调用出错

[Hieuzest]

getGuildList等一些api的默认参数after为undefined，这个undefined会被编码进get的参数里，导致服务器返回类型验证错误。

应当忽略此处的undefined，不清楚应当在undios侧修正还是在adapter处修正。

2024-04-14 13:25:14 [D] discord GET /users/@me/guilds { params: { after: undefined, limit: 200 } }
2024-04-14 13:25:14 [W] app Error: [400] {"message":"Invalid Form Body","code":50035,"errors":{"after":{"_errors":[{"code":"NUMBER_TYPE_COERCE","message":"Value \"undefined\" is not snowflake."}]}}}
                            at _Internal._Internal.<computed> (C:\Users\girki\AppData\Roaming\Koishi\Dev\node_modules\@satorijs\adapter-discord\src\types\internal.ts:36:21)
                            at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
                            at DiscordBot.getGuildList (C:\Users\girki\AppData\Roaming\Koishi\Dev\node_modules\@satorijs\adapter-discord\src\bot.ts:125:20)
                            at <anonymous> (c:\Users\girki\AppData\Roaming\Koishi\Dev\external\contextual-command\src\index.ts:45:17)

satori/adapters/discord/src/types/internal.ts

Lines 32 to 33 in 2e12d9e

	this.bot.logger.debug(`${method} ${url}`, config)
	return (await this.bot.http(method, url, config)).data