test(update): fix assertion after renaming deepctl update → dg update

Author: lukeocodes

packages/deepctl-cmd-update/tests/unit/test_startup_check.py

@@ -206,7 +206,7 @@ def test_notification_displayed(self):
         output = stderr_capture.getvalue()
         assert "2.0.0" in output
         assert "1.0.0" in output
-        assert "deepctl update" in output
+        assert "dg update" in output
 
     def test_no_notification_when_up_to_date(self, capsys):
         """No output when no update is available."""