Fix Magick version number

Author: brianpopow

tests/Directory.Build.targets

@@ -19,7 +19,7 @@
   <ItemGroup>
     <!-- Test Dependencies -->
     <PackageReference Update="BenchmarkDotNet" Version="0.13.1" />
-    <PackageReference Update="Magick.NET-Q16-AnyCPU" Version="8.33.0" />
+    <PackageReference Update="Magick.NET-Q16-AnyCPU" Version="8.3.3" />
     <PackageReference Update="Moq" Version="4.16.1" />
     <PackageReference Include="runtime.osx.10.10-x64.CoreCompat.System.Drawing" Version="5.8.64" Condition="'$(IsOSX)'=='true'" />
     <PackageReference Update="System.Drawing.Common" Version="5.0.2" />