build(deps): Bump pillow from 5.3.0 to 9.3.0 in /requirements

Bumps [pillow](https://github.com/python-pillow/Pillow) from 5.3.0 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@5.3.0...9.3.0)

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

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

Author: dependabot[bot]

requirements/base.txt

@@ -1,6 +1,6 @@
 pytz==2018.7  # https://github.com/stub42/pytz
 python-slugify==1.2.6  # https://github.com/un33k/python-slugify
-Pillow==5.3.0  # https://github.com/python-pillow/Pillow
+Pillow==9.3.0  # https://github.com/python-pillow/Pillow
 rcssmin==1.0.6  # https://github.com/ndparker/rcssmin
 argon2-cffi==18.3.0  # https://github.com/hynek/argon2_cffi
 redis>=2.10.6, < 3  # pyup: < 3 # https://github.com/antirez/redis

requirements/django-cms.txt

@@ -54,7 +54,7 @@ packaging==19.0
 parso==0.4.0
 pexpect==4.7.0
 pickleshare==0.7.5
-Pillow==5.3.0
+Pillow==9.3.0
 pluggy==0.12.0
 prompt-toolkit==2.0.9
 psycopg2-binary==2.7.6.1

requirements/pre-django-cms.txt

@@ -54,7 +54,7 @@ packaging==19.0
 parso==0.4.0
 pexpect==4.7.0
 pickleshare==0.7.5
-Pillow==5.3.0
+Pillow==9.3.0
 pluggy==0.12.0
 poyo==0.4.2
 prompt-toolkit==2.0.9