Bump pillow from 12.0.0 to 12.1.0

Bumps [pillow](https://github.com/python-pillow/Pillow) from 12.0.0 to 12.1.0.
- [Release notes](https://github.com/python-pillow/Pillow/releases)
- [Changelog](https://github.com/python-pillow/Pillow/blob/main/CHANGES.rst)
- [Commits](https://github.com/python-pillow/Pillow/compare/12.0.0...12.1.0)

---
updated-dependencies:
- dependency-name: pillow
  dependency-version: 12.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -26,7 +26,7 @@ Mastodon.py==2.1.4
 numpy==2.4.0
 oauthlib==3.3.1
 packaging==25.0
-pillow==12.0.0
+pillow==12.1.0
 platform_utils @ git+https://github.com/accessibleapps/platform_utils@e0d79f7b399c4ea677a633d2dde9202350d62c38
 pluggy==1.6.0
 psutil==7.2.1