Bump pillow from 9.0.1 to 9.3.0 in /requirements

Bumps [pillow](https://github.com/python-pillow/Pillow) from 9.0.1 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@9.0.1...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

@@ -12,7 +12,7 @@ aiofiles==0.7.0
 
 # TF Serving
 # ------------------------------------------------------------------------------
-Pillow==9.0.1
+Pillow==9.3.0
 numpy==1.21.2
 tensorflow-serving-api==2.6.0