Fix line-endings error for net - script - tests (Azure#52039)

* normalize the line endings of the platform json

Author: scbedd

eng/scripts/docs/tests/Service-Readme-Generation.Tests.ps1

@@ -28,7 +28,8 @@ Describe "Get-OnboardedDocsMsPackagesForMoniker" -Tag "UnitTest" {
         $onboardingPackages = Get-dotnet-OnboardedDocsMsPackagesForMoniker -DocRepoLocation $DocRepoLocation -moniker $moniker
         foreach ($package in $onboardingPackages.GetEnumerator()) {
             $package.Key | Should -Be $package.Value.Name
-            (ConvertTo-Json $package.Value) | Should -Be (Get-Content "$DocRepoLocation/metadata/$moniker/$($package.Key).json" -Raw)
+            $packageValueNormalized = (ConvertTo-Json $package.Value) -replace "`r`n", "`n"
+            $packageValueNormalized | Should -Be (Get-Content "$DocRepoLocation/metadata/$moniker/$($package.Key).json" -Raw)
         }
     }