fix: Correct the return type of Guild.fetch_channels (#1622)

* fix: Correct the return type of fetch_channels

Signed-off-by: retr0-init <146389702+retr0-init@users.noreply.github.com>

* fix: Revert return type of fetch_channels for GuildWidget

This is meant to be TYPE_VOICE_CHANNEL due to it being a GuildWidget, so this should be reverted.
#1622 (review)

Signed-off-by: retr0-init <146389702+retr0-init@users.noreply.github.com>

---------

Signed-off-by: retr0-init <146389702+retr0-init@users.noreply.github.com>
Co-authored-by: LordOfPolls <dev@lordofpolls.com>

Author: retr0-init

interactions/models/discord/guild.py

@@ -528,7 +528,7 @@ def get_owner(self) -> "models.Member":
         """
         return self._client.cache.get_member(self.id, self._owner_id)
 
-    async def fetch_channels(self) -> List["models.TYPE_VOICE_CHANNEL"]:
+    async def fetch_channels(self) -> List["models.TYPE_GUILD_CHANNEL"]:
         """
         Fetch this guild's channels.