Switch to importlib-metadata for compatibility with python >=3.12

[soredake]

More info here:
jjjake/internetarchive#621
jjjake/internetarchive#613

guessit does not work on python >=3.12 out of the box:

❯ guessit --help
Traceback (most recent call last):
File "<frozen runpy>", line 198, in _run_module_as_main
File "<frozen runpy>", line 88, in _run_code
File "C:\Users\user\AppData\Local\Programs\Python\Python312\Scripts\guessit.exe\[__main__.py](http://__main__.py/)", line 4, in <module>
File "C:\Users\user\AppData\Local\pipx\pipx\venvs\guessit\Lib\site-packages\guessit\[__init__.py](http://__init__.py/)", line 8, in <module>
from .api import guessit, GuessItApi
File "C:\Users\user\AppData\Local\pipx\pipx\venvs\guessit\Lib\site-packages\guessit\[api.py](http://api.py/)", line 17, in <module>
from .rules import rebulk_builder
File "C:\Users\user\AppData\Local\pipx\pipx\venvs\guessit\Lib\site-packages\guessit\rules\[__init__.py](http://__init__.py/)", line 11, in <module>
from .properties.episodes import episodes
File "C:\Users\user\AppData\Local\pipx\pipx\venvs\guessit\Lib\site-packages\guessit\rules\properties\[episodes.py](http://episodes.py/)", line 16, in <module>
from .title import TitleFromPosition
File "C:\Users\user\AppData\Local\pipx\pipx\venvs\guessit\Lib\site-packages\guessit\rules\properties\[title.py](http://title.py/)", line 11, in <module>
from .language import (
  File "C:\Users\user\AppData\Local\pipx\pipx\venvs\guessit\Lib\site-packages\guessit\rules\properties\[language.py](http://language.py/)", line 10, in <module>
  import babelfish
  File "C:\Users\user\AppData\Local\pipx\pipx\venvs\guessit\Lib\site-packages\babelfish\[__init__.py](http://__init__.py/)", line 14, in <module>
  from .converters import (LanguageConverter, LanguageReverseConverter, LanguageEquivalenceConverter, CountryConverter,
    File "C:\Users\user\AppData\Local\pipx\pipx\venvs\guessit\Lib\site-packages\babelfish\converters\[__init__.py](http://__init__.py/)", line 5, in <module>
    from pkg_resources import iter_entry_points, EntryPoint
    ModuleNotFoundError: No module named 'pkg_resources'

Workaround: pipx inject guessit setuptools