[ci]Fail when a step in multiline powershell fails (#35520)

.pipelines/v2/templates/job-build-project.yml

@@ -143,13 +143,19 @@ jobs:
 
   - pwsh: |-
       & '.pipelines/applyXamlStyling.ps1' -Passive
+    displayName: Verify XAML formatting
+
+  - pwsh: |-
       & '.pipelines/verifyNugetPackages.ps1' -solution '$(build.sourcesdirectory)\PowerToys.sln'
+    displayName: Verify Nuget package versions for PowerToys.sln
+
+  - pwsh: |-
       & '.pipelines/verifyArm64Configuration.ps1' -solution '$(build.sourcesdirectory)\PowerToys.sln'
       & '.pipelines/verifyArm64Configuration.ps1' -solution '$(build.sourcesdirectory)\tools\BugReportTool\BugReportTool.sln'
       & '.pipelines/verifyArm64Configuration.ps1' -solution '$(build.sourcesdirectory)\tools\WebcamReportTool\WebcamReportTool.sln'
       & '.pipelines/verifyArm64Configuration.ps1' -solution '$(build.sourcesdirectory)\tools\StylesReportTool\StylesReportTool.sln'
       & '.pipelines/verifyArm64Configuration.ps1' -solution '$(build.sourcesdirectory)\installer\PowerToysSetup.sln'
-    displayName: Verify formatting, nuget, and ARM64 configurations
+    displayName: Verify ARM64 configurations
 
   - ${{ if eq(parameters.enablePackageCaching, true) }}:
     - task: Cache@2

.pipelines/verifyArm64Configuration.ps1

@@ -59,6 +59,7 @@ if ($errorTable.Count -gt 0) {
         };
         Write-Host -ForegroundColor Red `r
     }
+    Write-Error "Found arm64 verification errors."
     exit 1;
 }
 

.pipelines/versionAndSignCheck.ps1

@@ -48,7 +48,7 @@ $totalFailure = 0;
 Write-Host $DirPath;
 
 if (-not (Test-Path $DirPath)) {  
-    Write-Host "Folder does not exist!"
+    Write-Error "Folder does not exist!"
 }
 
 Write-Host "Total items: " $items.Count
@@ -79,6 +79,7 @@ $items | ForEach-Object {
 }
 
 if ($totalFailure -gt 0) {
+    Write-Error "Some items had issues."
     exit 1
 }