combine changelog entries

Author: kathiehuang

.chloggen/add-azure-cloud-account-id.yaml

@@ -2,8 +2,6 @@ change_type: enhancement
 
 component: azure
 
-note: Add `azure.resourcegroup.name` attribute for the name of the Azure resource group the resource belongs to.
+note: Add `azure.resourcegroup.name` attribute for the name of the Azure resource group the resource belongs to and document that `cloud.account.id` maps to the Azure subscription ID.
 
-issues: [3697]
-
-subtext:
+issues: [3697, 3708]