Update ClrTypeSpec to latest version of the Mono source it was drawn from.

Author: dmiller

Clojure/Clojure/Clojure.csproj

@@ -25,7 +25,6 @@
 		<PackageReference Include="Microsoft.Extensions.DependencyModel" Version="8.0.0" />
 	</ItemGroup>
 
-
 	<ItemGroup>
 		<EmbeddedResource Update="Properties\Resources.resx">
 			<CopyToOutputDirectory>Never</CopyToOutputDirectory>
@@ -67,7 +66,7 @@
 	</ItemGroup>
 	-->
 
-	<ItemGroup Condition="'$(TargetFramework)' == 'net462' OR '$(TargetFramework)' == 'net9.0'">
+	<ItemGroup Condition="'$(TargetFramework)' == 'net462' OR '$(TargetFramework)' == 'net481' OR '$(TargetFramework)' == 'net9.0'">
 		<Parent Include="$(SolutionDir)Clojure.Compile\$(OutDir)\clojure.*.dll" /> 
 		<EmbeddedResource Include="@(Parent)">
 			<Link>%(Filename)$(Extension)</Link>