Agasc unit test fails in ska3 prime

[javierggt]

The failure might be an issue of the test data file format. This is the error:

=========================== short test summary info ============================
FAILED agasc/tests/test_obs_status.py::test_update_obs - TypeError: Cannot co...
============= 1 failed, 58 passed, 8 warnings in 61.62s (0:01:01) ==============
Traceback (most recent call last):
  File "/export/jgonzale/ska_testr/outputs/logs/Linux_2023-01-25T18-55-33_2023.1rc4-b4b8c9b_kady.cfa.harvard.edu/agasc/test_unit.py", line 2, in <module>
    testr.testr()
  File "/export/jgonzale/github-workflows/miniconda3/envs/ska3-prime/lib/python3.10/site-packages/testr/runner.py", line 67, in testr
    return test(*args, **kwargs)
  File "/export/jgonzale/github-workflows/miniconda3/envs/ska3-prime/lib/python3.10/site-packages/testr/runner.py", line 203, in test
    raise TestError('Failed')
testr.runner.TestError: Failed

More details:
https://icxc.cfa.harvard.edu/aspect/skare3/testr/releases/2023.1rc4-HEAD/agasc/test_unit.log