chore(deps): update rust crate serenity to v0.12.2

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
serenity	dependencies	patch	0.12.1 -> 0.12.2

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Release Notes

serenity-rs/serenity (serenity)

v0.12.2

Compare Source

Thanks to the following for their contributions:

• [@​bend-n]
• [@​GnomedDev]
• [@​jamesbt365]
• [@​MidSpike]
• [@​mkrasnitski]
• [@​RegenJacob]

Deprecations

Continuing with the deprecations started in 0.12.1, many more methods and fields have been deprecated in order to make an easier upgrade path to 0.13.

These deprecation messages include a migration path, it is recommended to go one by one using cargo check and migrate each warning to reduce the burden migrating to 0.13. Following is a list of the deprecation PRs and the justification for these changes.

• (#​2791) The Channel::is_nsfw method was wrong, useless, and served better by GuildChannel::nsfw
• (#​2794) These cache methods needed arcane borrow checker dances internally, and obscure the simplicity of the cache.
• (#​2816) Member::highest_role_info is now strictly less powerful than the new Guild::member_highest_role and can avoid a cache lookup if used correctly.
• (#​2825)
• • Guild::is_large is less accurate than Guild::large
• • Message::is_own is super simple to implement yourself
• • Message::is_private simply checks if Message::guild_id is none.
• (#​2838) Event::PresencesReplace does not exist, and is a relic from when serenity supported user accounts.
• (#​2861) TeamMember::permissions is always ["*"], so is useless.

Other notable changes

• (#​2790) Added CreateMessage::enforce_nonce, to prevent sending duplicate messages.
• (#​2801) Added EditProfile::banner, allowing banners to be set for bots.
• (#​2810) Added ChannelId::get_thread_member.
• (#​2812) Added Guild::partial_member_permissions_in, which can be used to avoid fetching a Member in message events just to check permissions.
• (#​2819) Added From<User> for CreateEmbedAuthor, setting the author name and icon to the User's info.
• (#​2813) Added UserId::direct_message, so you don't need a full User to direct message.
• (#​2834) Added Http::default_allowed_mentions to set the AllowedMentions to be used with every request.
• (#​2830) Added Guild(Id)::bulk_ban, allowing bulk banning without hitting rate limits.
• (#​2836) Added support for Message Polls, including reading and sending them.
• (#​2807) Added support for User Apps, alllowing user-installable application commands.
• (#​2882) Added support for super reactions.
• Many documentation fixes and other optimisations to improve memory and CPU usage.

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Configuration

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