Bump pillow from 11.3.0 to 12.0.0 in /requirements

Bumps [pillow](https://github.com/python-pillow/Pillow) from 11.3.0 to 12.0.0.
- [Release notes](https://github.com/python-pillow/Pillow/releases)
- [Changelog](https://github.com/python-pillow/Pillow/blob/main/CHANGES.rst)
- [Commits](python-pillow/Pillow@11.3.0...12.0.0)

---
updated-dependencies:
- dependency-name: pillow
  dependency-version: 12.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

requirements/common.txt

@@ -14,7 +14,7 @@ feedparser==6.0.12
 Jinja2==3.1.6
 libsass==0.23.0
 Markdown==3.9
-Pillow==11.3.0
+Pillow==12.0.0
 Pygments==2.19.2
 pykismet3==0.1.1
 requests==2.32.5