Bump pillow in /ai/generative-ai-service/policy-gap-mapper/files

Bumps [pillow](https://github.com/python-pillow/Pillow) from 12.0.0 to 12.2.0.
- [Release notes](https://github.com/python-pillow/Pillow/releases)
- [Changelog](https://github.com/python-pillow/Pillow/blob/main/CHANGES.rst)
- [Commits](python-pillow/Pillow@12.0.0...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]

ai/generative-ai-service/policy-gap-mapper/files/requirements.txt

@@ -1,5 +1,5 @@
 streamlit==1.51.0
-pillow==12.0.0
+pillow==12.2.0
 pandas==2.3.3
 pdf2image==1.17.0