Bump pillow from 8.4.0 to 9.3.0 in /python

Bumps [pillow](https://github.com/python-pillow/Pillow) from 8.4.0 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](https://github.com/python-pillow/Pillow/compare/8.4.0...9.3.0)

---
updated-dependencies:
- dependency-name: pillow
  dependency-type: direct:production
...
Signed-off-by: Ndependabot[bot] <support@github.com>

python/requirements.txt

@@ -24,7 +24,7 @@ opencv-python; platform_machine == "aarch64"
 pytest==7.0.1
 prometheus-client==0.12.0
 pillow==8.4.0 ; python_version == "3.6"
-pillow==9.0.0 ; python_version > "3.6"
+pillow==9.3.0 ; python_version > "3.6"
 av==8.0.3; platform_machine !=  "aarch64"
 decord==0.4.2; platform_machine !=  "aarch64"
 SimpleITK; platform_machine !=  "aarch64"

python/requirements_mac.txt

@@ -20,5 +20,5 @@ sentencepiece; platform_machine ==  "aarch64"
 opencv-python==3.4.17.61; platform_machine !=  "aarch64"
 opencv-python; platform_machine == "aarch64"
 pillow==8.4.0 ; python_version == "3.6"
-pillow==9.0.0 ; python_version > "3.6"
+pillow==9.3.0 ; python_version > "3.6"