Fix duplicate ComputeFileVersion target

Agent-Logs-Url: https://github.com/jet/equinox/sessions/107d1008-4de6-4666-9e2a-bc5021f8dd31

Co-authored-by: bartelink <206668+bartelink@users.noreply.github.com>

Author: Copilot

Directory.Build.targets

@@ -5,7 +5,7 @@
             <FileVersion>$(MinVerMajor).$(MinVerMinor).$(MinVerPatch).$(BUILD_ID)</FileVersion>
         </PropertyGroup>
     </Target>
-    <Target Name="ComputeFileVersion" BeforeTargets="Build">
+    <Target Name="SetGeneratePackageOnBuild" BeforeTargets="Build">
         <PropertyGroup>
             <GeneratePackageOnBuild Condition=" '$(IsCiBuild)' == 'true' and '$(IsPackable)' == 'true' ">true</GeneratePackageOnBuild>
         </PropertyGroup>