Merge branch 'OZG-7608-vorgangshoellen-for-statistik' into 'main'

...ava/de/ozgcloud/apilib/vorgang/OzgCloudVorgangHeader.java

...va/de/ozgcloud/apilib/vorgang/OzgCloudVorgangService.java

...de/ozgcloud/apilib/vorgang/dummy/DummyVorgangService.java

...cloud/apilib/vorgang/grpc/GrpcOzgCloudVorgangService.java

...loud/apilib/vorgang/grpc/OzgCloudVorgangHeaderMapper.java

...gcloud/apilib/vorgang/grpc/OzgCloudVorgangStubMapper.java

.../java/de/ozgcloud/apilib/vorgang/grpc/StreamingUtils.java

...gcloud/apilib/vorgang/OzgCloudVorgangStubTestFactory.java

...organg/grpc/GrpcFindDeletedVorgangRequestTestFactory.java

...rgang/grpc/GrpcFindDeletedVorgangResponseTestFactory.java

...d/apilib/vorgang/grpc/GrpcOzgCloudVorgangServiceTest.java

.../apilib/vorgang/grpc/OzgCloudVorgangHeaderMapperTest.java

...ud/apilib/vorgang/grpc/OzgCloudVorgangStubMapperTest.java

...a/de/ozgcloud/apilib/vorgang/grpc/StreamingUtilsTest.java

pom.xml