Bump SixLabors.ImageSharp.Drawing from 1.0.0-beta13 to 1.0.0-beta15 in /src#20

dependabot[bot] wants to merge 1 commit into

masterhofi171/OpenSAGE:masterfrom

dependabot/nuget/src/SixLabors.ImageSharp.Drawing-1.0.0-beta15hofi171/OpenSAGE:dependabot/nuget/src/SixLabors.ImageSharp.Drawing-1.0.0-beta15Copy head branch name to clipboard