operator; default ip release delay set for proxy

Operator environment variable PROXY_IP_RELEASE_DELAY is set to 20
seconds.

Author: zolug

config/operator/operator.yaml

@@ -59,6 +59,8 @@ spec:
             value: "1s"
           - name: CONDUIT_MTU
             value: "1500"
+          - name: PROXY_IP_RELEASE_DELAY
+            value: "20s"
         securityContext:
           allowPrivilegeEscalation: false
         livenessProbe: