Update serenity requirement from 0.10.9 to 0.11.5

[dependabot]

Updates the requirements on serenity to permit the latest version.

Release notes

Sourced from serenity's releases.

v0.11.5

Thanks to the following for their contributions:

• @​bumblepie

Notable changes

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

Changelog

Sourced from serenity's changelog.

[0.11.5] - 2022-07-29

Thanks to the following for their contributions:

• [@​bumblepie]

Notable changes

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

[0.11.4] - 2022-07-19

Thanks to the following for their contributions:

• [@​anden3]

Notable changes

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

[0.11.3] - 2022-07-19

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])

... (truncated)

Commits

• 4c9a61c Bump to 0.11.5
• 69484dc Make select menu values optional to fix deserialization of message component ...
• 5363f2a Bump to 0.11.4
• 54ed27f Fix deserialization error of GuildChannel::message_count (#2060)
• 5c9b0af Bump to 0.11.3 (#2059)
• 06c031b Fix feature name casing (#2051)
• 0a53345 Temporarily fix GuildChannel::message_count in a non-breaking way (#2058)
• b930895 Add support for Auto Moderation feature (#2035)
• 46707e4 Add optional min/max length fields for application command string options (#2...
• 11918e7 Add name for "Manage Events" permission (#2046)
• Additional commits viewable in compare view

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