Bump pillow from 9.0.0 to 9.0.1 in /notebooks

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]>

Author: dependabot[bot]

notebooks/streckennetz_requirements.txt

@@ -19,7 +19,7 @@ networkx==2.5
 numpy==1.21.0
 osmnx==0.16.0
 pandas==1.3.4
-Pillow==9.0.0
+Pillow==9.0.1
 psycopg2-binary==2.8.6
 pyparsing==2.4.7
 pyproj==2.6.1.post1