Reset keepalive timeout duration to 5 minutes

Author: JDPrabasha

router/src/main/resources/Dockerfile

@@ -48,7 +48,7 @@ ENV ROUTER_PRIVATE_KEY_PATH=/home/wso2/security/keystore/mg.key
 ENV ROUTER_PUBLIC_CERT_PATH=/home/wso2/security/keystore/mg.pem
 
 ENV KEEPALIVE_PROBES=3
-ENV KEEPALIVE_TIMEOUT=60
+ENV KEEPALIVE_TIMEOUT=300
 ENV KEEPALIVE_INTERVAL=30
 
 ENV ADAPTER_HOST=adapter