`ForumTag` cannot be created without setting an emoji

[Paillat-dev]

Summary

ForumTag cannot be created without setting an emoji even though this is allowed by the API.

Reproduction Steps

1. Run discord.ForumTag(name="foo", emoji=None)
2. See the error.

Minimal Reproducible Code

import discord

discord.ForumTag(name="foo", emoji=None)

Expected Results

The code should exist normally.

Actual Results

Traceback (most recent call last):
  File "<python-input-1>", line 1, in <module>
    discord.ForumTag(name="foo", emoji=None)
    ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\jerem\Documents\pycord\pycord\discord\channel.py", line 169, in __init__
    raise TypeError(
    ...<2 lines>...
    )
TypeError: emoji must be a GuildEmoji, PartialEmoji, or str and not <class 'NoneType'>

Intents

n/a

System Information

n/a

Checklist

• I have searched the open issues for duplicates.
• I have shown the entire traceback, if possible.
• I have removed my token from display, if visible.

Additional Context

The discord docs mention:

At most one of emoji_id and emoji_name may be set to a non-null value.

https://docs.discord.com/developers/resources/channel#forum-tag-object

This does not mean however that either of them should always be set. Both should be allowed to be null.