Bump pillow from 3.4.2 to 9.3.0

Bumps [pillow](https://github.com/python-pillow/Pillow) from 3.4.2 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@3.4.2...9.3.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

py32dev_requirements.txt

@@ -1,6 +1,6 @@
 Jinja2==2.6
 MarkupSafe==0.15
-Pillow==3.4.2
+Pillow==9.3.0
 Pygments==1.6
 Sphinx==1.2
 coverage==3.7.1