Added test and release as owners for the istio.io tests (#18253)
Added test and release as owners for the istio.io tests (#18253)


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