AzPreview use latest Az.Accounts version

Author: BethanyZhou

tools/AzPreview/AzPreview.psd1

@@ -52,7 +52,7 @@ DotNetFrameworkVersion = '4.7.2'
 # ProcessorArchitecture = ''
 
 # Modules that must be imported into the global environment prior to importing this module
-RequiredModules = @(@{ModuleName = 'Az.Accounts'; RequiredVersion = '2.3.0'; }, 
+RequiredModules = @(@{ModuleName = 'Az.Accounts'; ModuleVersion = '2.3.0'; }, 
             @{ModuleName = 'Az.ADDomainServices'; RequiredVersion = '0.1.0'; }, 
             @{ModuleName = 'Az.Advisor'; RequiredVersion = '1.1.1'; }, 
             @{ModuleName = 'Az.Aks'; RequiredVersion = '2.1.0'; }, 

tools/RunVersionController.ps1

@@ -288,8 +288,13 @@ function Generate-AzPreview
             $Psd1Object = Import-PowerShellDataFile $Psd1FilePath
             $moduleName = "Az.${ModuleName}"
             $moduleVersion = $Psd1Object.ModuleVersion.ToString()
-            $requiredModulesString += "@{ModuleName = '$moduleName'; RequiredVersion = '$moduleVersion'; }, 
-            "
+            if('Az.Accounts' -eq $moduleName)
+            {
+                $requiredModulesString += "@{ModuleName = '$moduleName'; ModuleVersion = '$moduleVersion'; }, `n            "
+            }
+            else{
+                $requiredModulesString += "@{ModuleName = '$moduleName'; RequiredVersion = '$moduleVersion'; }, `n            "
+            }            
         }
     }
     $requiredModulesString = $requiredModulesString.Trim()