Bump MessagePack from 1.9.3 to 1.9.11 in /chat-services

[dependabot[bot]]

Bumps MessagePack from 1.9.3 to 1.9.11.

Release notes

Sourced from MessagePack's releases.

v1.9.11

Changes:

Fixes:

#810: MessagePackSecurity.GetEqualityComparer returns null on copied instances

Enhancements:

#813: Add secure hashing for enums with backing integers of 32-bit or less

This list of changes was auto generated.

Commits

• 6cbd819 Build public releases from v1.x branch
• 8b43ede Merge pull request #813 from AArnott/fix808_v1.9
• 88dc35a Merge pull request #812 from AArnott/fix810_1.9
• 93015bb Fix compile break on netstandard1.6 build
• 7ebae83 Merge remote-tracking branch 'origin/fix810_1.9' into fix808_v1.9
• f71f24a Add secure hashing for enums with backing integers of 32-bit or less
• a1fb68b Fix MessagePackSecurity.GetEqualityComparer\<object> to not return null
• 1aa93e6 Collect nuget and vsix artifacts separately
• 86837cf Build all v?.* branches in CI
• c1e3f8b Document security measures in README
• See full diff in compare view

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