limit PSFramework and PSModuleDevelopment versions

- PSFramework: 1.11.343
- PSModuleDevelopment: 2.2.11.168

see PowershellFrameworkCollective/psframework#645

build/vsts-prerequisites.ps1

@@ -7,6 +7,14 @@ $modules = @("PSFramework", "PSScriptAnalyzer", "Az.Storage", "AzureAd", "PSNoti
 Write-Host "Installing Pester, maximum version 4.99.99" -ForegroundColor Cyan
 Install-Module "Pester" -MaximumVersion 4.99.99 -Force -Confirm:$false -Scope CurrentUser -AllowClobber -SkipPublisherCheck
 
+# TODO: When issue #645 with PSFramework/PSModuleDevelopment is resolved, this can be removed again.
+# https://github.com/PowershellFrameworkCollective/psframework/issues/645
+Write-Host "Installing PSFramework, maximum version 1.11.343" -ForegroundColor Cyan
+Install-Module "PSFramework" -MaximumVersion 1.11.343 -Force -Confirm:$false -Scope CurrentUser -AllowClobber -SkipPublisherCheck
+Write-Host "Installing PSModuleDevelopment, maximum version 2.2.11.168" -ForegroundColor Cyan
+Install-Module "PSModuleDevelopment" -MaximumVersion 2.2.11.168 -Force -Confirm:$false -Scope CurrentUser -AllowClobber -SkipPublisherCheck
+
+
 foreach ($item in $modules) {
 
     $module = Get-InstalledModule -Name $item -ErrorAction SilentlyContinue