update sdk version

Author: HugoChaan

windows/APIExample/install.ps1

@@ -1,5 +1,5 @@
-$agora_sdk = 'https://download.shengwang.cn/sdk/release/Shengwang_Native_SDK_for_Windows_v4.6.0_FULL.zip'
-$ThirdPartysrc = 'https://fullapp.oss-cn-beijing.aliyuncs.com/API-Examples/ThirdParty.zip'
+$agora_sdk = 'https://download.agora.io/sdk/release/Agora_Native_SDK_for_Windows_v4.6.0_FULL.zip'
+$ThirdPartysrc = 'https://demo-app-download.agora.io/api_example/ThirdParty.zip'
 $ThirdPartydes = 'ThirdParty.zip'
 $agora_des = 'AgoraSdk.zip'
 $agora_local_sdk = '../../sdk'