AzureMonitor: Add region params (#55763) (#55766)

* Ensure region params are included

* Fix betterer results change

(cherry picked from commit 53c61b49bf)

Co-authored-by: Andreas Christou <andreas.christou@grafana.com>

public/app/plugins/datasource/grafana-azure-monitor-datasource/resourcePicker/resourcePickerData.ts

@@ -350,7 +350,7 @@ export default class ResourcePickerData extends DataSourceWithBackend<AzureMonit
         {
           resourceUri: `/subscriptions/${subscription.id}`,
         },
-        false
+        true
       );
       if (namespaces) {
         const namespaceVals = namespaces.map((namespace) => `"${namespace.value.toLocaleLowerCase()}"`);