Bump pillow from 8.0.1 to 9.3.0

Bumps [pillow](https://github.com/python-pillow/Pillow) from 8.0.1 to 9.3.0.
- [Release notes](https://github.com/python-pillow/Pillow/releases)
- [Changelog](https://github.com/python-pillow/Pillow/blob/main/CHANGES.rst)
- [Commits](python-pillow/Pillow@8.0.1...9.3.0)

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

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

requirements.txt

@@ -6,7 +6,7 @@ djangorestframework==3.12.2
 djangorestframework-simplejwt==4.6.0
 flake8==3.8.4
 mccabe==0.6.1
-Pillow==8.0.1
+Pillow==9.3.0
 pycodestyle==2.6.0
 pyflakes==2.2.0
 PyJWT==2.0.0