Fix: Move from pkg_resources to packaging

[mharista]

No description provided.

[rewati-arista]

lg, out of curiosity what is the reason to change from pkg_resources.parse_version to packaging.version.parse?

[mharista]

@rewati-arista the reasoning is in the old PR #261

Here is a portion of the info:

https://docs.python.org/3/whatsnew/3.12.html

python/cpython#95299: Do not pre-install setuptools in virtual environments created with venv. This means that distutils, setuptools, pkg_resources, and easy_install will no longer available by default; to access these run pip install setuptools in the activated virtual environments

NOTE: it could have been possible to add setuptools to requirement to continue using pkg_resources but it gives a deprecation warning

[dlewis-arista]

Nitpicking so i've gone and approved anyway but could probably store parse(full_version) before the elif block instead of invoking it each stmt, or maybe map the versions to api versions in a data struct and iterate through that to make the comparison.