Bump SixLabors.ImageSharp from 3.1.4 to 3.1.5 in /src/SorterExpress#24

dependabot[bot] wants to merge 1 commit intodevelopIssung/SorterExpress:developfrom

dependabot/nuget/src/SorterExpress/SixLabors.ImageSharp-3.1.5Issung/SorterExpress:dependabot/nuget/src/SorterExpress/SixLabors.ImageSharp-3.1.5Copy head branch name to clipboard