Bump pillow from 11.1.0 to 11.2.1 (#1436)

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:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

demos/imagetagger/requirements.txt

@@ -1,6 +1,6 @@
 aiohttp==3.11.16
 aiohttp-jinja2==1.6
 keras==3.9.2
-Pillow==11.1.0
+Pillow==11.2.1
 tensorflow==2.18.1
 trafaret_config==2.0.2