update test to reflect new do_expedition print statements

Author: j-atkins

tests/expedition/test_do_expedition.py

@@ -8,4 +8,6 @@
 def test_do_expedition(capfd: CaptureFixture) -> None:
     do_expedition("expedition_dir", input_data=Path("expedition_dir/input_data"))
     out, _ = capfd.readouterr()
-    assert "This expedition took" in out, "Expedition did not complete successfully."
+    assert "Your expedition has concluded successfully!" in out, (
+        "Expedition did not complete successfully."
+    )