fix(GuildAuditLogsEntry): replace OverwriteType with AuditLogOptionsType

[thehairy]

Please describe the changes this PR makes and why it should be merged:

• This PR fixes a bug with GuildAuditLogsEntry.extra, since the overwrite type is a string and the wrong enum was used.

Status and versioning classification:

• Code changes have been tested against the Discord API, or there are no code changes
• I know how to update typings and have done so, or typings don't need updating

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Name	Status	Preview	Updated
discord-js	✅ Ready (Inspect)	Visit Preview	Jul 24, 2022 at 1:56AM (UTC)

[Jiralite]

The types need to be updated in GuildAuditLogsEntryExtraField:

discord.js/packages/discord.js/typings/index.d.ts

Lines 4618 to 4632 in af837de

	[AuditLogEvent.ChannelOverwriteCreate]:
	| Role
	| GuildMember
	| { id: Snowflake; name: string; type: 'Role' }
	| { id: Snowflake; type: 'Member' };
	[AuditLogEvent.ChannelOverwriteUpdate]:
	| Role
	| GuildMember
	| { id: Snowflake; name: string; type: 'Role' }
	| { id: Snowflake; type: 'Member' };
	[AuditLogEvent.ChannelOverwriteDelete]:
	| Role
	| GuildMember
	| { id: Snowflake; name: string; type: OverwriteType.Role }
	| { id: Snowflake; type: OverwriteType.Member };

It seems the first two events still use the string variant and the third event uses OverwriteType instead of AuditLogOptionsType.