Merge branch 'OZG-7473-aggregation-mapping-validation' into 'main'

...zgcloud/admin/AdministrationRepositoryRestConfigurer.java

.../java/de/ozgcloud/admin/reporting/AggregationMapping.java

...de/ozgcloud/admin/reporting/AggregationMappingMapper.java

...porting/ReportingAggregationManagerSettingDtoService.java

...reporting/AggregationMappingEnvironmentSettingITCase.java

...d/admin/reporting/AggregationMappingRepositoryITCase.java

...gcloud/admin/reporting/AggregationMappingTestFactory.java

...ing/ReportingAggregationManagerSettingDtoServiceTest.java

...a/de/ozgcloud/admin/reporting/ReportingSettingITCase.java

src/test/resources/reporting/request.json