Update CyberPrism.Core.csproj

Author: Forrest-tech

CyberPrism.Core/CyberPrism.Core.csproj

@@ -11,6 +11,10 @@
     <UseWPF>true</UseWPF>
   </PropertyGroup>
 
+  <ItemGroup Condition="'$(TargetFramework)'=='net8.0'">
+    <PackageReference Include="Prism.Core" Version="9.0.537" />
+  </ItemGroup>
+
   <ItemGroup Condition="'$(TargetFramework)'=='net8.0-windows7.0'">
     <PackageReference Include="Prism.Wpf" Version="9.0.537" />
     <PackageReference Include="Microsoft.Xaml.Behaviors.Wpf" Version="1.1.122" />