ENT-6791 New service lifecycle event published just before starting the state machine (#7164)

core/src/main/kotlin/net/corda/core/node/services/ServiceLifecycleObserver.kt

@@ -25,6 +25,7 @@ enum class ServiceLifecycleEvent {
      * sense for Corda node to continue its operation. The lifecycle events dispatcher will endeavor to terminate node's JVM as soon
      * as practically possible.
      */
+    BEFORE_STATE_MACHINE_START,
     STATE_MACHINE_STARTED,
 }