build(deps): update pillow requirement in /.github/dependabot

Updates the requirements on [pillow](https://github.com/python-pillow/Pillow) to permit the latest version.
- [Release notes](https://github.com/python-pillow/Pillow/releases)
- [Changelog](https://github.com/python-pillow/Pillow/blob/main/CHANGES.rst)
- [Commits](python-pillow/Pillow@1.0...12.2.0)

---
updated-dependencies:
- dependency-name: pillow
  dependency-version: 12.2.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

.github/dependabot/constraints.txt

@@ -6,7 +6,7 @@ msgpack<=1.1.2
 msgpack-numpy==0.4.8
 numpy<2.5.0
 pandas<3.1.0
-Pillow<12.2.0
+Pillow<12.3.0
 psutil==7.2.2
 pyparsing==3.3.2
 python-dateutil==2.9.0.post0