[BUG] weird installation error when using a Python 3.12 (conda)` environment

[neuronflow]

Describe the bug
A clear and concise description of what the bug is.

when running our minimal example in a Python 3.12 env I get (in 3.10 everything works fine):

(zude13) florian@a4000-21an1:~/flow/defacing/zurich_pediatric_loop_defacing_tests$ python preprocess.py 
Traceback (most recent call last):
  File "/home/florian/flow/defacing/zurich_pediatric_loop_defacing_tests/preprocess.py", line 1, in <module>
    from brainles_preprocessing.modality import Modality, CenterModality
  File "/home/florian/miniconda3/envs/zude13/lib/python3.12/site-packages/brainles_preprocessing/modality.py", line 8, in <module>
    from brainles_preprocessing.brain_extraction.brain_extractor import BrainExtractor
  File "/home/florian/miniconda3/envs/zude13/lib/python3.12/site-packages/brainles_preprocessing/brain_extraction/__init__.py", line 1, in <module>
    from .brain_extractor import HDBetExtractor
  File "/home/florian/miniconda3/envs/zude13/lib/python3.12/site-packages/brainles_preprocessing/brain_extraction/brain_extractor.py", line 9, in <module>
    from brainles_hd_bet import run_hd_bet
  File "/home/florian/miniconda3/envs/zude13/lib/python3.12/site-packages/brainles_hd_bet/__init__.py", line 1, in <module>
    from brainles_hd_bet.run import run_hd_bet
  File "/home/florian/miniconda3/envs/zude13/lib/python3.12/site-packages/brainles_hd_bet/run.py", line 6, in <module>
    import imp
ModuleNotFoundError: No module named 'imp'

To Reproduce
Steps to reproduce the behavior:
install in 3.12 env and run minimum example

Expected behavior
no errors should occur

Environment

operating system and version?

e.g. Ubuntu 23.10 LTS

[neuronflow]

why was this not caught by our unit tests? let's discuss tmrw :)

[MarcelRosier]

why was this not caught by our unit tests? let's discuss tmrw :)

We only test 3.10 and 3.11 as of now - I will extend it

[neuronflow]

Ideally, also include 3.13: #104

[MarcelRosier]

Ideally, also include 3.13: #104

As discussed in #104 anstpyx offers no wheel for 3.13. Building that in the Github CI takes a long time if it even works.
I also noticed some issues with scikit image and 3.13 - maybe we should just not support 3.13 until major dependencies are ready - or is there an urgent need for 3.13 support?