Refined the docstring for the get_task_status endpoint to improve cla…

[Olatundeawo]

What does this PR do?

This PR enhances the documentation for tasks.py. The documentation has been formatted using Black formatter.

Link to the corresponding GitHub issue: This resolve https://github.com/hotosm/raw-data-api/issues/219

Consideration:

While developing this PR, I considered the clarity and completeness of the documentation. I aimed to provide detailed information about each endpoint to assist users in understanding how to interact with the API effectively.

How to test?

visit http://127.0.0.1:8000/v1/docs to view API endpointsWhat does this PR do?

[kshitijrajsharma]

Thank you for the PR !