chore(nebula_tests): add license to parameter_descriptors

nebula_tests/continental/parameter_descriptors.cpp

@@ -1,3 +1,5 @@
+// Copyright 2024 TIER IV, Inc.
+
 #include "parameter_descriptors.hpp"
 
 namespace nebula

nebula_tests/continental/parameter_descriptors.hpp

@@ -1,3 +1,17 @@
+// Copyright 2024 TIER IV, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 #pragma once
 
 #include <rcl_interfaces/msg/parameter.hpp>