istioctl: fix skip confirmation with dryrun while upgrading istio (#34634)
istioctl: fix skip confirmation with dryrun while upgrading istio (#34634)

* istioctl: fix skip confirmation with dryrun while upgrading istio

* upgrade confirmation ignore when dryrun

Co-authored-by: John Howard <d864760d805af0f2f245f85d18382dd184bb0c60@google.com>

* Update upgrade.go

fix typo rootArgs

Co-authored-by: John Howard <d864760d805af0f2f245f85d18382dd184bb0c60@google.com>
istio/istio,istio/istio,istio/istio,istio/istio,istio/istio