Use packaging.version for correct version parsing

[tjstum]

If you use a version of numpy that has non-numeric components to the version number (e.g. a local version identifier), faiss will not import because the hand-rolled version parsing expects only digits:

$ /venv/bin/python -c 'import numpy; print(numpy.__version__)'
2.0.2+hrt0
$ /venv/bin/python -c 'import faiss'
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/venv/lib/python3.12/site-packages/faiss/__init__.py", line 17, in <module>
    from .loader import *
  File "/venv/lib/python3.12/site-packages/faiss/loader.py", line 91, in <module>
    instruction_sets = supported_instruction_sets()
                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/venv/lib/python3.12/site-packages/faiss/loader.py", line 47, in supported_instruction_sets
    if Version(numpy.__version__) >= Version("1.19"):
       ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/venv/lib/python3.12/site-packages/faiss/loader.py", line 13, in Version
    return [int(x) for x in v.split('.')]
            ^^^^^^
ValueError: invalid literal for int() with base 10: '2+hrt0'

This project depends on packaging, but the use was removed in #3807 (though the metadata wasn't). This restores the correct parsing of Version. If you'd prefer not to add this dependency, what is your suggestion for correctly parsing the numpy version (also, the install_requires line should be updated)

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@junjieqi merged this pull request in 3d7659e.