`pytest` fails in github actions due to missing pyBigWig

[thekugelmeister]

pytest fails when running tests in github actions due to a missing or broken installation of pyBigWig.

Example of error (relevant piece copied below)

==================================== ERRORS ====================================
_________________ ERROR collecting dimelo/test/dimelo_test.py __________________
ImportError while importing test module '/home/runner/work/dimelo-toolkit/dimelo-toolkit/dimelo/test/dimelo_test.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
../../../miniconda/envs/dimelo-toolkit/lib/python3.11/importlib/__init__.py:126: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
dimelo/__init__.py:1: in <module>
    from . import (
dimelo/export.py:5: in <module>
    import pyBigWig
E   ModuleNotFoundError: No module named 'pyBigWig'
_____________________ ERROR collecting dimelo/test_data.py _____________________
ImportError while importing test module '/home/runner/work/dimelo-toolkit/dimelo-toolkit/dimelo/test_data.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
../../../miniconda/envs/dimelo-toolkit/lib/python3.11/importlib/__init__.py:126: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
dimelo/__init__.py:1: in <module>
    from . import (
dimelo/export.py:5: in <module>
    import pyBigWig
E   ModuleNotFoundError: No module named 'pyBigWig'
=========================== short test summary info ============================
ERROR dimelo/test/dimelo_test.py
ERROR dimelo/test_data.py
!!!!!!!!!!!!!!!!!!! Interrupted: 2 errors during collection !!!!!!!!!!!!!!!!!!!!
============================== 2 errors in 0.11s ===============================