Bump pillow from 8.3.2 to 9.3.0

Bumps [pillow](https://github.com/python-pillow/Pillow) from 8.3.2 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@8.3.2...9.3.0)

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

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

Author: dependabot[bot]

requirements2.7.txt

@@ -7,7 +7,7 @@ kiwisolver==1.1.0
 matplotlib==2.2.4
 networkx==2.2
 numpy==1.16.3
-Pillow==8.3.2
+Pillow==9.3.0
 pkg-resources==0.0.0
 protobuf==3.7.1
 pyparsing==2.4.0

requirements3.6.txt

@@ -116,7 +116,7 @@ patsy==0.5.1
 pep8==1.7.1
 pexpect==4.7.0
 pickleshare==0.7.5
-Pillow==8.3.2
+Pillow==9.3.0
 pluggy==0.13.1
 ply==3.11
 prometheus-client==0.7.1