auth: Fix Azure auth test for China and US Gov clouds

The default Azure Public case already expected the double slash, but the China and US Gov test cases incorrectly expected single slashes, causing test failures.

Signed-off-by: Stefan Prodan <stefan.prodan@gmail.com>

Author: stefanprodan

auth/azure/provider_test.go

@@ -420,7 +420,7 @@ func TestProvider_NewRESTConfig(t *testing.T) {
 				},
 			},
 			authorityHost: "https://login.chinacloudapi.cn/",
-			secondScope:   "https://management.core.chinacloudapi.cn/.default",
+			secondScope:   "https://management.core.chinacloudapi.cn//.default",
 		},
 		{
 			name:    "valid AKS cluster - us gov",
@@ -439,7 +439,7 @@ func TestProvider_NewRESTConfig(t *testing.T) {
 				},
 			},
 			authorityHost: "https://login.microsoftonline.us/",
-			secondScope:   "https://management.core.usgovcloudapi.net/.default",
+			secondScope:   "https://management.core.usgovcloudapi.net//.default",
 		},
 		{
 			name:    "valid AKS cluster - lowercase",