Bump pillow from 9.0.0 to 9.0.1 in /source (#1759)

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

Author: dependabot[bot]

source/requirements.txt

@@ -24,7 +24,7 @@ latex==0.7.0
 markupsafe==2.0.1; python_version >= "3.6"
 packaging==21.3; python_version >= "3.6"
 pbr==5.8.0; python_version >= "3.6"
-pillow==9.0.0; python_version >= "3.7"
+pillow==9.0.1; python_version >= "3.7"
 pycparser==2.21; python_version >= "3.6" and python_full_version < "3.0.0" and platform_python_implementation != "CPython" or platform_python_implementation != "CPython" and python_version >= "3.6" and python_full_version >= "3.4.0"
 pygments==2.11.2; python_version >= "3.6" and python_version < "4.0"
 pyparsing==3.0.6; python_version >= "3.6"