Add saga attemptes supporintg

Author: Вадим Козыревский

README.md

@@ -36,7 +36,10 @@
   </p>
 </div>
 
-
+> [!WARNING]
+> **Breaking Changes in v5.0.0**
+>
+> Starting with version 5.0.0, Pydantic support will become optional. The default implementations of `Request`, `Response`, `DomainEvent`, and `NotificationEvent` will be migrated to dataclasses-based implementations.
 
 ## Overview