fix: adjust **kwargs in multiagent primitives

# Conflicts:
#	tests/strands/multiagent/test_base.py

Author: JackYPCOnline

tests/strands/multiagent/test_base.py

@@ -153,11 +153,12 @@ class TestMultiAgent(MultiAgentBase):
         def __init__(self):
             self.invoke_async_called = False
             self.received_task = None
-            self.received_invocation_state = None
+            self.received_kwargs = None
 
-        async def invoke_async(self, task, invocation_state=None):
+        async def invoke_async(self, task, invocation_state, **kwargs):
             self.invoke_async_called = True
             self.received_task = task
+            self.received_kwargs = kwargs
             self.received_invocation_state = invocation_state
             return MultiAgentResult(
                 status=Status.COMPLETED, results={"test": NodeResult(result=Exception("test"), status=Status.COMPLETED)}