Don't run test projects when DisableDefaultTargets == true

files/KoreBuild/modules/vstest/module.targets

@@ -19,7 +19,7 @@ Runs the VSTest on all projects in the ProjectsToTest itemgroup.
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   <PropertyGroup>
-    <TestDependsOn>$(TestDependsOn);TestProjects;ValidateBenchmarks</TestDependsOn>
+    <TestDependsOn Condition="'$(DisableDefaultTargets)' != 'true'">$(TestDependsOn);TestProjects;ValidateBenchmarks</TestDependsOn>
     <IgnoreFailingTestProjects>false</IgnoreFailingTestProjects>
     <IgnoreFailingTestProjects Condition="'$(KOREBUILD_IGNORE_DOTNET_TEST_EXIT_CODE)' == '1'">true</IgnoreFailingTestProjects>
   </PropertyGroup>