Fix leaktests

nukebuild/Build.cs

@@ -215,8 +215,6 @@ partial class Build : NukeBuild
             RunCoreTest("Avalonia.DesignerSupport.Tests");
         });
 
-    [PackageExecutable("JetBrains.dotMemoryUnit", "dotMemoryUnit.exe")] readonly Tool DotMemoryUnit;
-
     Target RunLeakTests => _ => _
         .OnlyWhenStatic(() => !Parameters.SkipTests && Parameters.IsRunningOnWindows)
         .DependsOn(Compile)
@@ -224,10 +222,7 @@ partial class Build : NukeBuild
         {
             void DoMemoryTest()
             {
-                var testAssembly = "tests\\Avalonia.LeakTests\\bin\\Release\\net461\\Avalonia.LeakTests.dll";
-                 DotMemoryUnit(
-                    $"{XunitPath.DoubleQuoteIfNeeded()} --propagate-exit-code -- {testAssembly}",
-                    timeout: 120_000);
+                RunCoreTest("Avalonia.LeakTests");
             }
             ControlFlow.ExecuteWithRetry(DoMemoryTest, delay: TimeSpan.FromMilliseconds(3));
         });