Adding timeCreated for VMSS VM Profile (#26067)

* vm profile create time changes

* vm profile create time changes

* adding example for timecreated in virtual machine profile

* update description

* prettier

---------

Co-authored-by: Kimberly Yip Chang <kiyipcha@microsoft.com>

Author: kimberlyyipc

specification/compute/resource-manager/Microsoft.Compute/ComputeRP/stable/2023-09-01/examples/virtualMachineScaleSetExamples/VirtualMachineScaleSet_Get.json

@@ -91,7 +91,8 @@
                   }
                 }
               ]
-            }
+            },
+            "timeCreated": "2023-09-27T01:03:40.3138469+00:00"
           },
           "provisioningState": "succeeded",
           "overprovision": false,

specification/compute/resource-manager/Microsoft.Compute/ComputeRP/stable/2023-09-01/virtualMachineScaleSet.json

@@ -5048,6 +5048,12 @@
         "securityPostureReference": {
           "$ref": "#/definitions/SecurityPostureReference",
           "description": "Specifies the security posture to be used for all virtual machines in the scale set. Minimum api-version: 2023-03-01"
+        },
+        "timeCreated": {
+          "readOnly": true,
+          "type": "string",
+          "format": "date-time",
+          "description": "Specifies the time in which this VM profile for the Virtual Machine Scale Set was created. Minimum API version for this property is 2023-09-01. This value will be added to VMSS Flex VM tags when creating/updating the VMSS VM Profile with minimum api-version 2023-09-01."
         }
       },
       "description": "Describes a virtual machine scale set virtual machine profile."