bump siio version

Author: pgrit

SeeSharp/SeeSharp.csproj

@@ -43,7 +43,7 @@
 
   <ItemGroup>
     <PackageReference Include="Markdig" Version="0.45.0" />
-    <PackageReference Include="SimpleImageIO" Version="1.10.0" />
+    <PackageReference Include="SimpleImageIO" Version="1.12.0" />
     <!-- <ProjectReference Include="../../SimpleImageIO/SimpleImageIO/SimpleImageIO.csproj" /> -->
     <PackageReference Include="TinyEmbree" Version="1.2.0" />
     <!-- <ProjectReference Include="../../TinyEmbree/TinyEmbree/TinyEmbree.csproj" /> -->