[Ubuntu, Windows] Add Azure modules to PS scope; deprecate zip (#13482)

images/ubuntu/scripts/build/Install-PowerShellAzModules.ps1

@@ -11,6 +11,7 @@ Import-Module "$env:HELPER_SCRIPTS/../tests/Helpers.psm1"
 # Get modules content from toolset
 $modules = (Get-ToolsetContent).azureModules
 $installPSModulePath = "/usr/share"
+$psModuleMachinePath = $env:PSModulePath + ":"
 
 foreach ($module in $modules) {
     $moduleName = $module.name
@@ -19,9 +20,12 @@ foreach ($module in $modules) {
     foreach ($version in $module.versions) {
         $modulePath = Join-Path -Path $installPSModulePath -ChildPath "${moduleName}_${version}"
         Write-Host " - $version [$modulePath]"
+        $psModuleMachinePath += ($modulePath + ":")
         Save-Module -Path $modulePath -Name $moduleName -RequiredVersion $version -Force
     }
-
 }
 
+$finalLine = "PSModulePath=$($psModuleMachinePath.TrimEnd(':').Replace("\root", '$HOME'))"
+Add-Content -Path "/etc/environment" -Value $finalLine
+
 Invoke-PesterTests -TestFile "PowerShellModules" -TestName "AzureModules"