Werk #15996: agent_azure: Add support for China

Component	Checks & agents
Title	agent_azure: Add support for China
Date	Jul 20, 2023
Level	Trivial Change
Class	New Feature
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.3.0b1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

We use the following URLs for the given authorities:

• Global: Login into 'https://login.microsoftonline.com', get data from 'https://graph.microsoft.com'
• China: Login into 'https://login.partner.microsoftonline.cn', get data from 'https://microsoftgraph.chinacloudapi.cn'

To the list of all Werks