Idle Connection Timeout FIx

[SunithaGudisagarIBM1]

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Relates OR Closes #0000

Output from acceptance testing:

$ make testacc TEST=./ibm/service/vpc TESTARGS='-run=TestAccIBMISLBListener_connTimeout'

Scenarios 1:

resource "ibm_is_lb_listener" "listener1" {
  lb                    = ibm_is_lb.application_01.id
  port                  = 9087
  protocol              = "http"
  accept_proxy_protocol = true
  /* idle_connection_timeout = 60  */
}

resource "ibm_is_lb_listener" "listener_network" {
  lb                    = ibm_is_lb.testacc_LB.id
  port                  = 8080
  protocol              = "udp"
  // accept_proxy_protocol = true
  //idle_connection_timeout = 60 
} 

resource "ibm_is_lb_listener" "listener1" {
  lb                    = ibm_is_lb.application_01.id
  port                  = 9087
  protocol              = "http"
  accept_proxy_protocol = true
  idle_connection_timeout = 60 
}

resource "ibm_is_lb_listener" "listener_network" {
  lb                    = ibm_is_lb.testacc_LB.id
  port                  = 8080
  protocol              = "udp"
  // accept_proxy_protocol = true
  idle_connection_timeout = 60 
} 

resource "ibm_is_lb_listener" "listener1" {
  lb                    = ibm_is_lb.application_01.id
  port                  = 9087
  protocol              = "http"
  accept_proxy_protocol = true
  idle_connection_timeout = 60 
}