Update Proxy SHA to latest. (#21663)
Update Proxy SHA to latest. (#21663)

Signed-off-by: Piotr Sikora <ba6f3a1a6d7e1ecae91b31e93969cc392fbd0fdd@google.com>
istio/istio,istio/istio,istio/istio,smawson/istio,istio/istio,smawson/istio,smawson/istio,istio/istio,smawson/istio,smawson/istio,smawson/istio