Fix: To address MSI repair test failures, AppInstallerTest.TestMsiIns…

…taller will be uninstalled as part of test setup to avoid interference.

src/AppInstallerCLIE2ETests/RepairCommand.cs

@@ -21,6 +21,8 @@ public class RepairCommand : BaseCommand
         [OneTimeSetUp]
         public void OneTimeSetup()
         {
+            // Try clean up AppInstallerTest.TestMsiInstaller for failure cases where cleanup is not successful
+            TestCommon.RunAICLICommand("uninstall", "AppInstallerTest.TestMsiInstaller");
         }
 
         /// <summary>