Bump pillow from 8.0.1 to 9.0.1

Bumps [pillow](https://github.com/python-pillow/Pillow) from 8.0.1 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@8.0.1...9.0.1)

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

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

Author: dependabot[bot]

requirements.txt

@@ -65,7 +65,7 @@ parso==0.7.1
 pathtools==0.1.2
 pexpect==4.8.0
 pickleshare==0.7.5
-Pillow==8.0.1
+Pillow==9.0.1
 prometheus-client==0.8.0
 promise==2.3
 prompt-toolkit==3.0.8