Bump pillow from 11.1.0 to 12.1.1 in /application/single_app

Bumps [pillow](https://github.com/python-pillow/Pillow) from 11.1.0 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@11.1.0...12.1.1)

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

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

Author: dependabot[bot]

application/single_app/requirements.txt

@@ -38,7 +38,7 @@ langchain-text-splitters==0.3.9
 beautifulsoup4==4.13.3
 openpyxl==3.1.5
 xlrd==2.0.1
-pillow==11.1.0
+pillow==12.1.1
 ffmpeg-binaries-compat==1.0.1
 ffmpeg-python==0.2.0
 semantic-kernel>=1.39.4