Bump pillow from 9.0.0 to 9.0.1 in /modules/frontend

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]>

modules/frontend/requirements.txt

@@ -11,7 +11,7 @@ Jinja2==3.0.1
 MarkupSafe==2.0.1
 numpy==1.21.0
 pandas==1.2.4
-Pillow==9.0.0
+Pillow==9.0.1
 pydicom==2.1.2
 pypng==0.0.20
 python-dateutil==2.8.1