Ignored unneccecary warnings in tests and updated LICENCE file

LICENSE

 MIT License
 
-Copyright (c) 2020-2022, Oscar Gustafsson et al
+Copyright (c) 2020-2025, Oscar Gustafsson et al
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

test/test_core_operations.py

@@ -413,9 +413,10 @@ class TestSink:
         bfly = Butterfly()
         sfg = bfly.to_sfg()
         s = Sink()
-        sfg1 = sfg.replace_operation(s, "out0")
+        with pytest.warns(UserWarning, match="Output port out0 has been removed"):
+            sfg1 = sfg.replace_operation(s, "out0")
 
-        assert sfg1.output_count == 1
-        assert sfg1.input_count == 2
+            assert sfg1.output_count == 1
+            assert sfg1.input_count == 2
 
-        assert sfg.evaluate_output(1, [0, 1]) == sfg1.evaluate_output(0, [0, 1])
+            assert sfg.evaluate_output(1, [0, 1]) == sfg1.evaluate_output(0, [0, 1])

test/test_simulation_gui.py

@@ -7,6 +7,7 @@ except ImportError:
     pytestmark = pytest.mark.skip("Qt not setup")
 
 
+@pytest.mark.filterwarnings("ignore:No artists with labels found to put in legend")
 def test_start(qtbot):
     widget = PlotWindow({})
     qtbot.addWidget(widget)
@@ -28,6 +29,7 @@ def test_start_with_data(qtbot):
     assert len(widget._plot_axes.lines) == 1
 
 
+@pytest.mark.filterwarnings("ignore:No artists with labels found to put in legend")
 def test_click_buttons(qtbot):
     sim_res = {
         '0': [0.5, 0.5, 0, 0],