Update Copyright

Author: mee-ironsoftware

NuGet/IronSoftware.Drawing.nuspec

@@ -42,7 +42,7 @@ For general support and technical inquiries, please email us at: developers@iron
   - Fixes a bug when saving an image without specifying ImageFormat
 * Color
   - [Hotfix] Fixes a bug when comparing Color with null</releaseNotes>
-		<copyright>Copyright © Iron Software 2022</copyright>
+		<copyright>Copyright © Iron Software 2022-2023</copyright>
 		<tags>Images, Bitmap, SkiaSharp, SixLabors, BitMiracle, Maui, SVG, TIFF, TIF, GIF, JPEG, PNG, Color, Rectangle, Drawing, C#, VB.NET, ASPX, create, render, generate, standard, netstandard2.0, core, netcore</tags>
 		<repository type="git" url="https://github.com/iron-software/IronSoftware.Drawing.Common" commit="$commit$" />
 		<dependencies>