Fix test cases

Author: esrakartalOpt

optimizely/event/event_factory.py

@@ -93,6 +93,7 @@ def create_log_event(
             user_context.client_name,
             user_context.client_version,
             user_context.anonymize_ip,
+            user_context.region,
             True,
         )
 

optimizely/event/payload.py

@@ -34,6 +34,7 @@ def __init__(
         anonymize_ip: bool,
         enrich_decisions: bool = True,
         visitors: Optional[list[Visitor]] = None,
+        region: str = 'US'
     ):
         self.account_id = account_id
         self.project_id = project_id
@@ -43,6 +44,7 @@ def __init__(
         self.anonymize_ip = anonymize_ip
         self.enrich_decisions = enrich_decisions
         self.visitors = visitors or []
+        self.region = region
 
     def __eq__(self, other: object) -> bool:
         batch_obj = self.get_event_params()