Fix flow not terminating on CTRL+C (#2611)

Co-Authored-By: Joe Moura <joao@crewai.com>

tests/flow_test.py

@@ -755,3 +755,29 @@ def test_multiple_routers_from_same_trigger():
     assert execution_order.index("anemia_analysis") > execution_order.index(
         "anemia_router"
     )
+
+
+def test_flow_keyboard_interrupt_handling():
+    """Test that a flow properly terminates when a keyboard interrupt is received."""
+    execution_order = []
+
+    class KeyboardInterruptFlow(Flow):
+        @start()
+        def step_1(self):
+            execution_order.append("step_1")
+
+        @listen(step_1)
+        def step_2(self):
+            execution_order.append("step_2")
+            raise KeyboardInterrupt()
+
+        @listen(step_2)
+        def step_3(self):
+            execution_order.append("step_3")
+
+    flow = KeyboardInterruptFlow()
+    
+    with pytest.raises(KeyboardInterrupt):
+        flow.kickoff()
+    
+    assert execution_order == ["step_1", "step_2"]