Bump pillow from 5.2.0 to 9.3.0

Bumps [pillow](https://github.com/python-pillow/Pillow) from 5.2.0 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/5.2.0...9.3.0)

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

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

requirements.txt

@@ -26,7 +26,7 @@ opencv-contrib-python==3.4.3.18
 opencv-python==3.4.2.17
 pafy==0.5.4
 pandas==0.23.4
-Pillow==5.2.0
+Pillow==9.3.0
 protobuf==3.6.1
 psycopg2==2.7.5
 pyparsing==2.3.0