Bump pillow from 11.2.1 to 11.3.0 in /requirements

Bumps [pillow](https://github.com/python-pillow/Pillow) from 11.2.1 to 11.3.0.
- [Release notes](https://github.com/python-pillow/Pillow/releases)
- [Changelog](https://github.com/python-pillow/Pillow/blob/main/CHANGES.rst)
- [Commits](python-pillow/Pillow@11.2.1...11.3.0)

---
updated-dependencies:
- dependency-name: pillow
  dependency-version: 11.3.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements/base.txt

@@ -11,7 +11,7 @@ django-taggit==5.0.1
 django-tailwind==4.0.1
 ipython==7.33.0
 Markdown==3.4.4
-Pillow==11.2.1
+Pillow==11.3.0
 Pygments==2.12.0
 python-akismet==0.4.2
 python-dotenv==1.1.1