Fix license apache2 (#7)

Apache Software License 2.0

Copyright (c) 2021, Stavros Kolometsos

Copyright (c) 2024, Jorge Echevarría, Daniel García

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.

Apache License

                           Version 2.0, January 2004

                        http://www.apache.org/licenses/

      identification within third-party archives.

   Copyright 2022 Telefónica Innovación Digital, Fogus Innovations & Services P.C. and ETSI.

   Copyright (c) 2021, Stavros Kolometsos

   Licensed under the Apache License, Version 2.0 (the "License");

   you may not use this file except in compliance with the License.