Update authors in project desc

Author: mario-winkler

pyproject.toml

@@ -7,6 +7,7 @@ name = "operaton_external_task_client_python3"
 version = "1.0.0"
 authors = [
     { name = "Deserve Labs", email="devteam@deserve.com" },
+    { name = "DLR terrabyte", email="terrabyte@dlr.de" }
 ]
 maintainers = [
     { name = "DLR terrabyte", email="terrabyte@dlr.de" }