Some tests seem to change or rely on state and this causes errors with parallel execution #376
Description
Don't have time to debug right now but #375 was causing test fails when I looked into it the test seemed unrelated to the code changes. Disabling parallel execution resolved the issue for the moment but slows tests down...
FAILED ../../.tox/py39/lib/python3.9/site-packages/stixcore/products/tests/test_housekeeping.py::test_calibration_hk - spiceypy.utils.exceptions.SpiceKERNELVARNOTFOUND:
FAILED ../../.tox/py39/lib/python3.9/site-packages/stixcore/products/tests/test_housekeeping.py::test_calibration_hk_many - spiceypy.utils.exceptions.SpiceKERNELVARNOTFOUND: