Bump SixLabors.ImageSharp from 3.1.4 to 3.1.5 in /Rendering/TheAvaloniaOpenGL#241

dependabot[bot] wants to merge 1 commit intomasterBAndysc/WoWDatabaseEditor:masterfrom

dependabot/nuget/Rendering/TheAvaloniaOpenGL/SixLabors.ImageSharp-3.1.5BAndysc/WoWDatabaseEditor:dependabot/nuget/Rendering/TheAvaloniaOpenGL/SixLabors.ImageSharp-3.1.5Copy head branch name to clipboard