use toolset to install az module

images/linux/scripts/installers/azpowershell.sh

@@ -8,12 +8,8 @@
 source $HELPER_SCRIPTS/os.sh
 
 # List of versions
-if isUbuntu20 ; then
-    versions=$(pwsh -Command '(Find-Module -Name Az).Version')
-else
 toolset="$INSTALLER_SCRIPT_FOLDER/toolset.json"
 versions=$(jq -r '.azureModules[] | select(.name | contains("az")) | .versions[]' $toolset)
-fi
 
 # Try to install and update PowerShellGet before the actual installation
 pwsh -Command "Install-Module -Name PowerShellGet -Force"

images/linux/toolsets/toolset-2004.json

@@ -69,6 +69,14 @@
         {"name": "MarkdownPS"},
         {"name": "Pester"}
     ],
+    "azureModules": [
+        {
+            "name": "az",
+            "versions": [
+                "4.7.0"
+            ]
+        }
+    ],
     "apt": {
         "common_packages": [
             "dbus",