Add assertion for release count

src/main/python/ddadevops/release-mixin/test/test_services.py

@@ -40,6 +40,7 @@ def test_prepare_release_service(): # todo: maybe use mocks for service api test
     prepare_release_service.write_and_commit_bump()
 
     # test
+    assert prepare_release_service.release_repo.get_release_count == 1
     assert prepare_release_service.release.validate_count == 2
     assert prepare_release_service.release_repo.version_repository.write_file_count == 2
     assert prepare_release_service.git_api.add_file_count == 2