Bump SixLabors.ImageSharp from 2.1.3 to 3.1.3 in /src/ImageResizerFunction#3

dependabot[bot] wants to merge 1 commit intomainstevetemple/Image-Resizer-Azure-Function:mainfrom

dependabot/nuget/src/ImageResizerFunction/SixLabors.ImageSharp-3.1.3stevetemple/Image-Resizer-Azure-Function:dependabot/nuget/src/ImageResizerFunction/SixLabors.ImageSharp-3.1.3Copy head branch name to clipboard