Bump pillow from 8.2.0 to 9.0.0 in /v2functions

Bumps [pillow](https://github.com/python-pillow/Pillow) from 8.2.0 to 9.0.0.
- [Release notes](https://github.com/python-pillow/Pillow/releases)
- [Changelog](https://github.com/python-pillow/Pillow/blob/main/CHANGES.rst)
- [Commits](python-pillow/Pillow@8.2.0...9.0.0)

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

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

Author: dependabot[bot]

v2functions/requirements.txt

@@ -8,6 +8,6 @@ six==1.11.0
 # Additional packages
 requests==2.20.1
 feedparser==5.2.1
-Pillow==8.2.0
+Pillow==9.0.0
 numpy==1.18.1
 onnxruntime==1.4.0