Bump pillow from 10.3.0 to 12.1.1 in /modules/sync (#266)

Bumps [pillow](https://github.com/python-pillow/Pillow) from 10.3.0 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](https://github.com/python-pillow/Pillow/compare/10.3.0...12.1.1)

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

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modules/sync/requirements.txt

@@ -1,7 +1,7 @@
 cssselect==0.9.2
 lxml==4.9.1
 Markdown==2.6.6
-Pillow==10.3.0
+Pillow==12.1.1
 pymongo==4.6.3
 PyPDF2==1.27.9
 python-frontmatter==0.3.1