Support none docstrings

[jcharlong]

Hello,

I ran into an issue running sdr code with CPython's -OO flag which optimizes out docstrings. The issue can be reproduced by running tests with python -OO -m pylint tests/.

This branch contains a solution broken into 2 commits:

1. Check for and handle None docstrings within sdr's helper function.
2. Require galois version 0.3.9 which brings support for CPython's -OO flag.

My branch is based off of release/0.0.x & I've ensured it passes ruff & the unit tests locally (w/ -OO).

Let me know if there's anything I missed or can do to facilitate merging this PR. Thank you in advance.

[mhostetter]

Thanks for the PR. Looks good to me!

One note, I noticed in your PR to galois that your commits aren't linked to your GitHub profile. (If you hover over your name in the commit history, it doesn't link to your GitHub page.) Because of that, you don't automatically appear in the "Contributors" list for this repo. If you care about that, I think this link could help.

[jcharlong]

Ah, thanks. I hastily access to my personal GitHub account on my work machine for these 2 PRs. I wouldn't bother holding up the PR for this, but I appreciate the head's up & will address it.

[mhostetter]

Thanks for this! I was planning on releasing the next version on Sunday. I can easily push a release tonight though, if you're looking to pull the latest sooner.

[jcharlong]

Thanks for the quick merge & support. Sunday would work well, I don't think any sooner makes a difference on my end.