Bump pillow from 4.0.0 to 9.0.0 in /AIND-CV-FacialKeypoints

Bumps [pillow](https://github.com/python-pillow/Pillow) from 4.0.0 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@4.0.0...9.0.0)

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

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

Author: dependabot[bot]

AIND-CV-FacialKeypoints/requirements.txt

@@ -1,4 +1,4 @@
 opencv-python==3.2.0.6
 matplotlib==2.0.0
 numpy==1.12.0
-pillow==4.0.0
+pillow==9.0.0