Update impl/core/src/main/java/io/serverlessworkflow/impl/LifecycleEvents.java

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: ricardozanini

impl/core/src/main/java/io/serverlessworkflow/impl/LifecycleEvents.java

@@ -22,6 +22,7 @@
  */
 public final class LifecycleEvents {
 
+  private LifecycleEvents() {}
   /** Notifies about the start of a task. */
   public static final String TASK_STARTED = "io.serverlessworkflow.task.started.v1";