First import error `FisherRaoElasticRegistration`

Hi,

I just wanted to report the following issue. When trying to import FisherRaoElasticRegistration from a clean session, I get an error. Upon retrying, it then works.

>>> from skfda.preprocessing.registration import FisherRaoElasticRegistration  # Doesn't work
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<frozen importlib._bootstrap>", line 1075, in _handle_fromlist
  File ".../python3.10/site-packages/lazy_loader/__init__.py", line 76, in __getattr__
    submod = importlib.import_module(submod_path)
  File ".../python3.10/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File ".../python3.10/site-packages/skfda/preprocessing/registration/_fisher_rao.py", line 11, in <module>
    from ...exploratory.stats import fisher_rao_karcher_mean
  File "<frozen importlib._bootstrap>", line 1075, in _handle_fromlist
  File ".../python3.10/site-packages/lazy_loader/__init__.py", line 76, in __getattr__
    submod = importlib.import_module(submod_path)
  File ".../python3.10/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File ".../python3.10/site-packages/skfda/exploratory/stats/_fisher_rao.py", line 7, in <module>
    from fdasrsf.utility_functions import optimum_reparam
  File ".../python3.10/site-packages/fdasrsf/__init__.py", line 44, in <module>
    from .umap_metric import efda_distance, efda_distance_curve
  File ".../python3.10/site-packages/fdasrsf/umap_metric.py", line 9, in <module>
    import numba
  File ".../python3/dist-packages/numba/__init__.py", line 42, in <module>
    from numba.np.ufunc import (vectorize, guvectorize, threading_layer,
  File ".../python3/dist-packages/numba/np/ufunc/__init__.py", line 3, in <module>
    from numba.np.ufunc.decorators import Vectorize, GUVectorize, vectorize, guvectorize
  File ".../python3/dist-packages/numba/np/ufunc/decorators.py", line 3, in <module>
    from numba.np.ufunc import _internal
SystemError: initialization of _internal failed without raising an exception
>>> from skfda.preprocessing.registration import FisherRaoElasticRegistration  # Now works fine
>>>

Version information

OS: Ubuntu 20.04
Python version: 3.10.6
scikit-fda version: 0.8.1

Cheers!

GAA-UAM / scikit-fda

First import error `FisherRaoElasticRegistration` #527