Grafana v8.3.1 regression : Can't get subscriptions list or workspaces list

i use azure monitor plugin (0.3.1), since some days, my query are failed when i try to list subscriptions() or workspaces() in variable templates, i have the following errors:
Templating [subscription]
Error updating options: Unknown function: ‘subscriptions’.
Templating [workspace]
Unknown function: ‘workspaces’.
i don’t have the issue in Grafana v8.1.5 (c725a4259a)

any ideas on this issue?