Bump pillow from 8.3.2 to 9.0.1 (odk-x#210)

Bumps [pillow](https://github.com/python-pillow/Pillow) from 8.3.2 to 9.0.1.
- [Release notes](https://github.com/python-pillow/Pillow/releases)
- [Changelog](https://github.com/python-pillow/Pillow/blob/main/CHANGES.rst)
- [Commits](python-pillow/Pillow@8.3.2...9.0.1)

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -18,7 +18,7 @@ livereload==2.6.3
 MarkupSafe==1.1.1
 packaging==20.9
 pathtools==0.1.2
-Pillow==8.3.2
+Pillow==9.0.1
 pip-review==1.1.0
 port-for==0.4
 proselint==0.10.2