Adjust to renku API slug/name changes, fix parallel execution of activities
0.0.44
new version using [omni_essentials](https://github.com/omnibenchmark/omni_essentials) to find `orchestrator_url`
0.0.43
omnibenchmark python matching renku-python 2.4.1
0.0.42
omnibenchmark-python` release working with **renku-python v2.3.2**. This release supports toil to execute workflows and allows parallel execution and updates of activities.