pillow-9 deprecation warnings: like pr#475

[jdlcdl]

Description

Removes Pillow 10 deprecation warnings, seen since 9.4, when running screenshot generator.

This pull request is categorized as a:

• [ ] New feature
• [ ] Bug fix
• [x] Code refactor (getbbox() is a different api than getsize())
• [ ] Documentation
• [x] Other (removal of noisy warnings)

Checklist

• [x] I’ve run pytest and made sure all unit tests pass before submitting the PR

If you modified or added functionality/workflow, did you add new unit tests?

• [x] No, I’m a fool
• [ ] Yes
• [ ] N/A

I have tested this PR on the following platforms/os:

• [x] Raspberry Pi OS Manual Build
• [ ] SeedSigner OS on a Pi0/Pi0W board
• [x] Other (desktop linux generating screenshots.)

[kdmukai]

The swap from getsize() to getbbox() looks guaranteed to be pixel-for-pixel identical, based on how Pillow implemented getbbox()

So I don't see any risks of unintended side effects to these changes.

Kind of a weird deprecation on their part, given that they're still using self.font.getsize() under the hood even in the the main branch.

Whoops, wait, we use FreeTypeFont. A bit harder to decipher what it's doing w/the self.font.getsize() data. https://github.com/python-pillow/Pillow/blob/9.4.0/src/PIL/ImageFont.py#L181-L196

[jdlcdl]

Im just now realizing that this pr is a duplicate of #485

Ooops... closed.