[Compute] az create vm: Remove preview flag for CapacityReservationGroup parameters

Related commands
vm create; vm update; vmss create; vmss update

Description
The capacity reservation group has been a GA-ed feature for a while. A
customer noticed the preview feature warning when using the CLI and
reported it. The flag must have been missed from being cleaned up
during the GA preparation for Capacity reservation feature.

Author: sjawahar-hub

src/azure-cli/azure/cli/command_modules/vm/_params.py

@@ -1259,7 +1259,7 @@ def load_arguments(self, _):
                        help='The maximum price (in US Dollars) you are willing to pay for a Spot VM/VMSS. -1 indicates that the Spot VM/VMSS should not be evicted for price reasons')
             c.argument('capacity_reservation_group', options_list=['--capacity-reservation-group', '--crg'],
                        help='The ID or name of the capacity reservation group that is used to allocate. Pass in "None" to disassociate the capacity reservation group. Please note that if you want to delete a VM/VMSS that has been associated with capacity reservation group, you need to disassociate the capacity reservation group first.',
-                       min_api='2021-04-01', is_preview=True)
+                       min_api='2021-04-01')
             c.argument('v_cpus_available', type=int, min_api='2021-11-01', help='Specify the number of vCPUs available')
             c.argument('v_cpus_per_core', type=int, min_api='2021-11-01', help='Specify the ratio of vCPU to physical core. Setting this property to 1 also means that hyper-threading is disabled.')
             c.argument('disk_controller_type', disk_controller_type)