feat: handle parent release in generated documentation

        # Generate the initial_condition of the test suite

        self.test_suite['initial_condition'] = self.generate_initial_condition()

        # Generate the parent release and correct the reference in case that the tags include information since_v1.x.y

        self.get_version()

    def get_version(self):

        data = [x['tags'] for x in self.test_suite['test_cases']]

        aux = [item for sublist in data for item in sublist if item.startswith('since')]

        if len(aux) == 0:

            has_since = False

        else:

            has_since = True

        are_all_same = all(item == aux[0] for item in aux)

        if are_all_same and has_since:

            aux = aux[0]

            aux = aux.split('since_')[1]

        else:

            if has_since:

                print('Error not all the tags have the same version. Select default v1.3.1')

            aux = 'v1.3.1'

        if 'clauses' in self.test_suite['reference']:

            self.test_suite['reference'] = \

                f"ETSI GS CIM 009 V{aux.split('v')[1]} [], clauses {self.test_suite['reference'].split('clauses ')[1]}"

        else:

            self.test_suite['reference'] = \

                f"ETSI GS CIM 009 V{aux.split('v')[1]} [], clause {self.test_suite['reference'].split('clause ')[1]}"

        self.test_suite['parent_release'] = aux

    def generate_initial_condition(self) -> str:

        aux = [x['setup'] for x in self.test_cases]

        if all(element == aux[0] for element in aux[1:]):