Support py3.12

[chenrui333]

While trying to build 3.0.5 release against py3.12, we ran into some runtime failure

  ==> /opt/homebrew/Cellar/fobis/3.0.5_2/bin/FoBiS.py build -compiler gnu
  Traceback (most recent call last):
    File "/opt/homebrew/Cellar/fobis/3.0.5_2/bin/FoBiS.py", line 19, in <module>
      from fobis.fobis import main
    File "/opt/homebrew/Cellar/fobis/3.0.5_2/libexec/lib/python3.12/site-packages/fobis/__init__.py", line 23, in <module>
      from future import standard_library
    File "/opt/homebrew/Cellar/fobis/3.0.5_2/libexec/lib/python3.12/site-packages/future/standard_library/__init__.py", line 65, in <module>
      import imp
  ModuleNotFoundError: No module named 'imp'

relates to Homebrew/homebrew-core#150016