fix(deps): update rust crate serenity to ^0.11.5

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
serenity	dependencies	patch	^0.11.2 -> ^0.11.5

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Release Notes

serenity-rs/serenity

v0.11.5

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Thanks to the following for their contributions:

• [@​bumblepie]

Notable changes

• Make select menu values optional to fix deserialization of message component interactions ([@​bumblepie])

v0.11.4

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Thanks to the following for their contributions:

• [@​anden3]

Notable changes

• Fix deserialization error of GuildChannel::message_count ([@​anden3])

v0.11.3

Compare Source

Thanks to the following for their contributions:

• [@​AlexisTM]
• [@​aawilson]
• [@​acdenisSK]
• [@​bumblepie]
• [@​DRuppFv]
• [@​FallenWarrior2k]
• [@​GnomedDev]
• [@​kangalioo]
• [@​Milo123459]
• [@​mkrasnitski]
• [@​NotNorom]
• [@​nickelc]
• [@​SimonZehetner]

Notable changes

• Temporarily fix GuildChannel::message_count in a non-breaking way ([@​GnomedDev])
• Add support for Auto Moderation feature ([@​nickelc])
• Add optional min/max length fields for application command string options ([@​nickelc])
• Allow select menu response for modals ([@​AlexisTM])
• Add app_permissions field on interactions ([@​nickelc])
• Enable Invite::expires_at field ([@​mkrasnitski])
• Fix "missing field discriminator" serde error for presence updates ([@​nickelc])
• Add webhook example ([@​NotNorom])
• Introduce rustversion dependency and backports module ([@​GnomedDev])
• Add MessageType::AutoModerationAction enum variant ([@​nickelc])
• Attempt to fix lifetime bug around CustomisedHelpData ([@​mkrasnitski])
• Auto-impl CacheHttp for Arc<T> if T also implements it ([@​mkrasnitski])
• Add audit log action types for scheduled events ([@​nickelc])
• Fill gaps in all model::application types ([@​kangalioo])
• Add support for slash command localization ([@​kangalioo])
• Implement announcement channel following ([@​GnomedDev])
• Add event handler methods for scheduled events ([@​nickelc])
• Add methods to Webhook to enable direct creation ([@​mkrasnitski])
• Consolidate interactions & oauth2 model types into the application module ([@​nickelc])
• Fix compile errors in builders when the model feature is disabled ([@​FallenWarrior2k])

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