OZG-7324: Fix License Header

...ava/de/ozgcloud/eingang/formcycle/FormDataController.java

...va/de/ozgcloud/eingang/formcycle/FormDataHtmlCleaner.java

...gcloud/eingang/formcycle/FormcycleAdapterApplication.java

...cycle/common/errorhandling/FormcycleExceptionHandler.java

.../formcycle/common/errorhandling/InternalExceptionDto.java

...e/common/protobuf/CustomProtobufHttpMessageConverter.java

...ingang/formcycle/FormCycleAttachmentGroupTestFactory.java

...gcloud/eingang/formcycle/FormCycleFormDataMapperTest.java

...cloud/eingang/formcycle/FormCycleFormDataTestFactory.java

...oud/eingang/formcycle/FormCycleFormHeaderTestFactory.java

...ingang/formcycle/FormCyclePostfachAddressTestFactory.java

...ud/eingang/formcycle/FormCycleServiceKontoMapperTest.java

...d/eingang/formcycle/FormCycleServiceKontoTestFactory.java

.../ozgcloud/eingang/formcycle/FormDataControllerITCase.java

...de/ozgcloud/eingang/formcycle/FormDataControllerTest.java

...ozgcloud/eingang/formcycle/FormDataHtmlCleanerITCase.java

...e/ozgcloud/eingang/formcycle/FormDataHtmlCleanerTest.java

...ud/eingang/formcycle/FormcycleAdapterApplicationTest.java

...e/common/errorhandling/FormcycleExceptionHandlerTest.java

...common/errorhandling/InternalExceptionDtoTestFactory.java