Sync Factory Method, Abstract Factory, Builder, Prototype to Java 25; fix post/code mismatches

01-creational/factory-method/EmailSender.java

@@ -0,0 +1,8 @@
+package factorymethod;
+
+public class EmailSender extends NotificationSender {
+    @Override
+    protected Notification createNotification() {
+        return new EmailNotification();
+    }
+}