Update employeeexperience-post-learningproviders.md - document least privileged role, GA burndown

Author: FaithOmbongi

api-reference/beta/api/employeeexperience-post-learningproviders.md

@@ -23,8 +23,8 @@ Choose the permission or permissions marked as least privileged for this API. Us
 [!INCLUDE [permissions-table](../includes/permissions/employeeexperience-post-learningproviders-permissions.md)]
 
 > **Note:** The following are required for the user:
-> - Viva Suite or Viva Learning license
-> - Global admin, knowledge admin role
+> - Viva Suite or Viva Learning license.
+> - A supported [Microsoft Entra role](/entra/identity/role-based-access-control/permissions-reference?toc=%2Fgraph%2Ftoc.json), where Knowledge Administrator is the least privileged supported role.
 
 ## HTTP request