Migrate from pkg_resources to importlib

[timsutton]

👋 Hello, I have been working on migrating Python-based projects in homebrew-core to use explicitly-declared resources. Just wanted to flag that I noticed trailscraper depends on pkg_resources, which is removed in Python 3.12 with the removal of distutils. In the upstream Homebrew formula we'll explicitly add setuptools as a required dependency so that installation with Python 3.12 continues to work.

Some more resources:

• pkg_resources to importlib_resources migration guide
• PEP-517