chore(deps): update dependency sixlabors.imagesharp to v2.1.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
SixLabors.ImageSharp	nuget	patch	2.1.0 -> 2.1.1

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Release Notes

SixLabors/ImageSharp

v2.1.1

What's Changed

• Memory allocation allocation tracker test helper by @​tocsoft in Memory allocation allocation tracker test helper SixLabors/ImageSharp#2082
• Added sanity check for every jpeg marker by @​br3aker in Added sanity check for every jpeg marker SixLabors/ImageSharp#2084
• Fixed string exif value corner case exception by @​br3aker in Fixed string exif value corner case exception SixLabors/ImageSharp#2088
• Add missing decoder sanitation checks by @​JimBobSquarePants and @​brianpopow in Add missing decoder sanitation checks SixLabors/ImageSharp#2077

Full Changelog: SixLabors/ImageSharp@v2.1.0...v2.1.1

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