Add optional property EndpointType to the endpoints in 2021-06-01-preview (#15203)

* Add EndpointType to the endpoints.

* Add example

* Fix spaces

* Add EndpointType to the endpoints in 2021-06-01-preview

* remove unnecessary changes

Co-authored-by: REDMOND\lakshv <lakshv@microsoft.com>

Author: laxmankumar12

specification/providerhub/resource-manager/Microsoft.ProviderHub/preview/2021-06-01-preview/examples/ResourceTypeRegistrations_CreateOrUpdate.json

@@ -20,7 +20,8 @@
             ],
             "requiredFeatures": [
               "<feature flag>"
-            ]
+            ],
+            "endpointType": "Production"
           }
         ],
         "resourceConcurrencyControlOptions": {
@@ -159,6 +160,19 @@
               "requiredFeatures": [
                 "Microsoft.Contoso/RPaaSSampleApp"
               ]
+            },
+            {
+              "apiVersions": [
+                "2021-06-01-preview"
+              ],
+              "locations": [
+                "East US 2 EUAP",
+                "Central US EUAP"
+              ],
+              "requiredFeatures": [
+                "Microsoft.Contoso/RPaaSSampleApp"
+              ],
+              "endpointType": "Canary"
             }
           ],
           "swaggerSpecifications": [

specification/providerhub/resource-manager/Microsoft.ProviderHub/preview/2021-06-01-preview/providerhub.json

@@ -2907,6 +2907,19 @@
         "timeout": {
           "format": "duration",
           "type": "string"
+        },
+        "endpointType": {
+          "enum": [
+            "NotSpecified",
+            "Canary",
+            "Production",
+            "TestInProduction"
+          ],
+          "type": "string",
+          "x-ms-enum": {
+            "name": "EndpointType",
+            "modelAsString": true
+          }
         }
       }
     },
@@ -4245,6 +4258,19 @@
         "timeout": {
           "format": "duration",
           "type": "string"
+        },
+        "endpointType": {
+          "enum": [
+            "NotSpecified",
+            "Canary",
+            "Production",
+            "TestInProduction"
+          ],
+          "type": "string",
+          "x-ms-enum": {
+            "name": "EndpointType",
+            "modelAsString": true
+          }
         }
       }
     },