[Build][Installer]Fix NU1503 build warnings (#33938)

## Summary of the Pull Request

This PR aims for fix some CI build warnings.
## Detailed Description of the Pull Request / Additional comments

### Warning NU1503
Fix warning NU1503 for wix toolset projects marking them as restorable
and adding an empty restore target.
### No test result files matching '[ '**/*.trx' ]' were found.
Skip publishing of test results for ARM64 since pipeline isn't running
ARM64 tests

![image](https://github.com/user-attachments/assets/10a64ca2-2bff-42a8-ade9-07bd5ad88e3c)

.pipelines/ci/templates/build-powertoys-steps.yml

@@ -246,7 +246,7 @@ steps:
   inputs:
     testResultsFormat: VSTest
     testResultsFiles: '**/*.trx'
-  condition: always()
+  condition: ne(variables['BuildPlatform'],'arm64')
 
 # Native dlls
 - task: VSTest@2