`pkg_resources` is deprecated

[mdtanker]

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

When importing UQpy, I'm receiving the following warning:

pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.

As it states, this may break the importing of your project as early as November.