MAINT: pkg_resources deprecation

[lizgehret]

Replaces call to pkg_resources with the relevant importlib command.

We recently completed an org-wide sprint in QIIME 2 to remove all deprecated calls to pkg_resources. After completing this, I noticed there was still a deprecation warning within our latest QIIME 2 development environments:

/Users/elizabethgehret/miniconda3/envs/q2dev-amp/lib/python3.10/site-packages/emperor/__init__.py:9: UserWarning: 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.

Our next release is at the end of this month, so this change ensures continued compatibility post-release after pkg_resources is fully removed in November/December of this year.

[ElDeveloper]

Thank you so much @lizgehret!

[lizgehret]

Hmm, this is an interesting failure. The importlib.metadata module has been around since python 3.8, so this shouldn't be a problem... let me take a closer look to see why that's not being found.

Fixed and confirmed CI passes on my fork; this should be good to re-run @ElDeveloper!

[ElDeveloper]

Looks great, would you mind adding a note to the ChangeLog?

[lizgehret]

Looks great, would you mind adding a note to the ChangeLog?

Happy to; thanks @ElDeveloper! Looks like you beat me to it; thank you!

[lizgehret]

Hey @ElDeveloper I wanted to circle back on this and see if you were planning to create a new emperor release any time soon and/or if you would be open to doing that so we can update our emperor version pin to pull in the updates from this PR? I should have checked in about this when I originally opened the PR, so sorry for the delayed follow-up about it!

[ElDeveloper]

@lizgehret almost done with the release, just have to upload to PyPI.

[lizgehret]

Hey @ElDeveloper, ah that's great!! Thank you 🙏🏻