Skip net6 ios tests on devdiv (#1311)

eng/pipelines/handlers.yml

@@ -369,7 +369,7 @@ stages:
         - name: core_net6
           desc: Core .NET 6
           android: $(System.DefaultWorkingDirectory)/src/Core/tests/DeviceTests/Core.DeviceTests-net6.csproj
-          ${{ if eq(variables['System.TeamProject'], 'devdiv') }}:
+          ${{ if ne(variables['System.TeamProject'], 'devdiv') }}:
             ios: $(System.DefaultWorkingDirectory)/src/Core/tests/DeviceTests/Core.DeviceTests-net6.csproj
           net6: true