Add missing copyright in file not associated with this PR

tst/unit/test_upper_bound.cpp

@@ -3,6 +3,17 @@
 // Copyright(C) 2023 The Parthenon collaboration
 // Licensed under the 3-clause BSD License, see LICENSE file for details
 //========================================================================================
+// (C) (or copyright) 2023. Triad National Security, LLC. All rights reserved.
+//
+// This program was produced under U.S. Government contract 89233218CNA000001 for Los
+// Alamos National Laboratory (LANL), which is operated by Triad National Security, LLC
+// for the U.S. Department of Energy/National Nuclear Security Administration. All rights
+// in the program are reserved by Triad National Security, LLC, and the U.S. Department
+// of Energy/National Nuclear Security Administration. The Government is granted for
+// itself and others acting on its behalf a nonexclusive, paid-up, irrevocable worldwide
+// license in this material to reproduce, prepare derivative works, distribute copies to
+// the public, perform publicly and display publicly, and to permit others to do so.
+//========================================================================================
 
 #include <algorithm>
 #include <string>