Bump pillow in the security group across 1 directory (#132)

Bumps the security group with 1 update in the / directory: [pillow](https://github.com/python-pillow/Pillow).


Updates `pillow` from 12.1.0 to 12.1.1
- [Release notes](https://github.com/python-pillow/Pillow/releases)
- [Changelog](https://github.com/python-pillow/Pillow/blob/main/CHANGES.rst)
- [Commits](python-pillow/Pillow@12.1.0...12.1.1)

---
updated-dependencies:
- dependency-name: pillow
  dependency-version: 12.1.1
  dependency-type: direct:production
  dependency-group: security
...

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Author: dependabot[bot]

requirements.txt

@@ -1,4 +1,4 @@
 black==26.1.0
 bpy==4.5.0
 ruff==0.15.0
-pillow==12.1.0
+pillow==12.1.1