OZG-5841 OZG-5952 Remove default values for behoerdenschluessel-properties

alfa-server/src/main/resources/application.yml

...cloud/alfa/export/AmbiguousCodelistePatternException.java

...e/ozgcloud/alfa/export/BehoerdenschluesselProperties.java

...d/alfa/export/BehoerdenschluesselPropertiesValidator.java

...c/main/java/de/ozgcloud/alfa/export/XdomeaProperties.java

...a/src/main/java/de/ozgcloud/alfa/vorgang/KopfCreator.java

...loud/alfa/export/BehoerdenschluesselPropertiesITCase.java

...gcloud/alfa/export/BehoerdenschluesselPropertiesTest.java

...fa/export/BehoerdenschluesselPropertiesValidatorTest.java

...st/java/de/ozgcloud/alfa/export/XdomeaPropertiesTest.java

.../de/ozgcloud/alfa/export/XdomeaPropertiesTestFactory.java

...c/test/java/de/ozgcloud/alfa/vorgang/KopfCreatorTest.java

alfa-xdomea/src/test/resources/application-itcase.yaml