Add 'apply' state

https://github.com/fairtracks/omnipy/blob/da30c3c12bb260ee79419b7f78a4b2bf061f357b/src/omnipy/api/enums.py#L47

```python

    FINISHED = 3


# TODO: Add 'apply' state
# TODO: Add 'failed' state and error management
# TODO: Consider the need for a 'waiting' state


class RunStateLogMessages(str, Enum):

```