[tf] Where to add Lifecycle to integrations

[MichaelThamm]

According to the TF Juju provider juju_integration resource, there is an argument for lifecycle:

resource "juju_integration" "this" {
  ...
  application ...
  application ...
  
  # Add any RequiresReplace schema attributes of
  # an application in this integration to ensure
  # it is recreated if one of the applications
  # is Destroyed and Recreated by terraform. E.G.:
  lifecycle {
    replace_triggered_by = [
      juju_application.wordpress.name,
	  ...
      juju_application.percona-cluster.charm.name,
    ]
  }
}

For most charms, we want to keep any integrations when a charm dies. Are there any cases we would want to add this lifecycle feature to our integrations?