Bump pillow from 11.0.0 to 11.1.0 in /requirements

Bumps [pillow](https://github.com/python-pillow/Pillow) from 11.0.0 to 11.1.0.
- [Release notes](https://github.com/python-pillow/Pillow/releases)
- [Changelog](https://github.com/python-pillow/Pillow/blob/main/CHANGES.rst)
- [Commits](python-pillow/Pillow@11.0.0...11.1.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

requirements/common.txt

@@ -13,7 +13,7 @@ feedparser==6.0.11
 Jinja2==3.1.5
 libsass==0.23.0
 Markdown==3.7
-Pillow==11.0.0
+Pillow==11.1.0
 psycopg[c]==3.2.3
 Pygments==2.19.1
 pykismet3==0.1.1