Update deprecated numpy calls to resolve unit test warnings as part of #101
.tox/test/lib/python3.11/site-packages/astrocut/tests/test_make_cube.py: 11 warnings
/host/.tox/test/lib/python3.11/site-packages/_pytest/python.py:194: DeprecationWarning: `alltrue` is deprecated as of NumPy 1.25.0, and will be removed in NumPy 2.0. Please use `all` instead.
result = testfunction(**testargs)
Update deprecated
numpy
calls to resolve unit test warnings as part of #101