change istioctl archive directory structure (#16746)
change istioctl archive directory structure (#16746)

* change istioctl archive directory structure

* fix windows zip

smawson/istio,istio/istio,istio/istio,geeknoid/istio,geeknoid/istio,istio/istio,smawson/istio,smawson/istio,smawson/istio,smawson/istio,geeknoid/istio,istio/istio,istio/istio,geeknoid/istio,smawson/istio,geeknoid/istio,geeknoid/istio