Bump pillow from 11.1.0 to 11.2.1 (#1520)

Bumps [pillow](https://github.com/python-pillow/Pillow) from 11.1.0 to 11.2.1.
- [Release notes](https://github.com/python-pillow/Pillow/releases)
- [Changelog](https://github.com/python-pillow/Pillow/blob/main/CHANGES.rst)
- [Commits](python-pillow/Pillow@11.1.0...11.2.1)

---
updated-dependencies:
- dependency-name: pillow
  dependency-version: 11.2.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements_dev.txt

@@ -3,7 +3,7 @@
 # pip install -r requirements_dev.txt
 #---------------------------------------------------------
 flake8==7.2.0
-pillow==11.1.0
+pillow==11.2.1
 pytest==8.3.5
 pytest-cache==1.0
 pytest-cov==6.1.1