[API 2023-07-01 Update] Fixing distribute in ImageTemplateUpdateParameters (#26487)

* fixing distribute in ImageTemplateUpdateParameters

* prettier

* removing x-ms-identifiers from ImageTemplate

Author: zdelacerda-microsoft

specification/imagebuilder/resource-manager/Microsoft.VirtualMachineImages/stable/2023-07-01/imagebuilder.json

@@ -1705,8 +1705,7 @@
       ],
       "required": [
         "identity"
-      ],
-      "x-ms-identifiers": []
+      ]
     },
     "ImageTemplateUpdateParameters": {
       "type": "object",
@@ -1723,9 +1722,18 @@
           "description": "The user-specified tags associated with the image template."
         },
         "properties": {
-          "x-ms-client-flatten": true,
-          "$ref": "#/definitions/ImageTemplateProperties",
-          "description": "The properties of the image template"
+          "type": "object",
+          "description": "Parameters for updating an image template.",
+          "properties": {
+            "distribute": {
+              "type": "array",
+              "items": {
+                "$ref": "#/definitions/ImageTemplateDistributor"
+              },
+              "x-ms-identifiers": [],
+              "description": "The distribution targets where the image output needs to go to."
+            }
+          }
         }
       },
       "description": "Parameters for updating an image template."