refactor(GuildBanManager): Add deprecation warning for deleteMessageDays (#8659)

refactor(GuildBanManager): add deprecation warning for `deleteMessageDays`

Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

packages/discord.js/src/managers/GuildBanManager.js

@@ -1,5 +1,6 @@
 'use strict';
 
+const process = require('node:process');
 const { Collection } = require('@discordjs/collection');
 const { makeURLSearchParams } = require('@discordjs/rest');
 const { Routes } = require('discord-api-types/v10');
@@ -8,6 +9,8 @@ const { TypeError, Error, ErrorCodes } = require('../errors');
 const GuildBan = require('../structures/GuildBan');
 const { GuildMember } = require('../structures/GuildMember');
 
+let deprecationEmittedForDeleteMessageDays = false;
+
 /**
  * Manages API methods for GuildBans and stores their cache.
  * @extends {CachedManager}
@@ -152,6 +155,17 @@ class GuildBanManager extends CachedManager {
     if (typeof options !== 'object') throw new TypeError(ErrorCodes.InvalidType, 'options', 'object', true);
     const id = this.client.users.resolveId(user);
     if (!id) throw new Error(ErrorCodes.BanResolveId, true);
+
+    if (typeof options.deleteMessageDays !== 'undefined' && !deprecationEmittedForDeleteMessageDays) {
+      process.emitWarning(
+        // eslint-disable-next-line max-len
+        'The deleteMessageDays option for GuildBanManager#create() is deprecated. Use the deleteMessageSeconds option instead.',
+        'DeprecationWarning',
+      );
+
+      deprecationEmittedForDeleteMessageDays = true;
+    }
+
     await this.client.rest.put(Routes.guildBan(this.guild.id, id), {
       body: {
         delete_message_seconds: