Fix error when repository is not provided (Azure#20210)

Fix the Azure#20209
(Repository is not set but used in installation and updating)

Author: msJinLei

tools/Az.Tools.Installer/Az.Tools.Installer.psm1

@@ -341,6 +341,7 @@ function Get-AzModuleFromRemote {
         if ($modules.Count -gt 1) {
             Throw "[$Invoker] You have multiple modules matched 'Az' in the registered reposistory $($modules.Repository). Please specify a single -Repository."
         }
+        $Repository = $modules.Repository
 
         $accountVersion = 0
         if (!$UseExactAccountVersion) {
@@ -365,16 +366,16 @@ function Get-AzModuleFromRemote {
                     elseif ($module.Keys -Contains 'RequiredVersion') {
                         $version = $module.RequiredVersion
                     }
-                    $modulesWithVersion += [PSCustomObject]@{Name = $module.Name; Version = $version}
+                    $modulesWithVersion += [PSCustomObject]@{Name = $module.Name; Version = $version; Repository = $Repository}
                 }
                 else {
-                    $modulesWithVersion += [PSCustomObject]@{Name = $module.Name; Version = $accountVersion}
+                    $modulesWithVersion += [PSCustomObject]@{Name = $module.Name; Version = $accountVersion; Repository = $Repository}
                 }
             }
             elseif (!$Name -or $Name -Contains $module.Name)
             {
                 if ($module.RequiredVersion) {
-                    $modulesWithVersion += [PSCustomObject]@{Name = $module.Name; Version = $module.RequiredVersion}
+                    $modulesWithVersion += [PSCustomObject]@{Name = $module.Name; Version = $module.RequiredVersion; Repository = $Repository}
                     $containValidModule = $true
                 }
             }

tools/Az.Tools.Installer/exports/Update-AzModule.ps1

@@ -91,6 +91,7 @@ function Update-AzModule {
             $findModuleParams.Add('Repository', $Repository)
         }
         $modulesToUpdate = Get-AzModuleFromRemote @findModuleParams
+        $Repository = $modulesToUpdate.Repository | Select-Object -First 1
         $moduleUpdateTable = $modulesToUpdate | Foreach-Object { [PSCustomObject]@{
             Name = $_.Name
             VersionBeforeUpdate = [Version] ($groupSet[$_.Name] | Select-Object -First 1)

tools/Az.Tools.Installer/internal/Install-AzModule_Default.ps1

@@ -80,6 +80,7 @@ function Install-AzModule_Default {
 
         $modules = @()
         $modules += Get-AzModuleFromRemote @findModuleParams | Sort-Object -Property Name
+        $Repository = $modules.Repository | Select-Object -First 1
 
         if($Name) {
             $moduleExcluded = $Name | Where-Object {!$modules -or $modules.Name -NotContains $_}