Bump pillow in /tools in the pip group across 1 directory

Bumps the pip group with 1 update in the /tools directory: [pillow](https://github.com/python-pillow/Pillow).


Updates `pillow` from 9.0.1 to 10.3.0
- [Release notes](https://github.com/python-pillow/Pillow/releases)
- [Changelog](https://github.com/python-pillow/Pillow/blob/main/CHANGES.rst)
- [Commits](python-pillow/Pillow@9.0.1...10.3.0)

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

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

tools/requirements.txt

@@ -1,6 +1,6 @@
 pygit2==1.0.1
 bidict==0.13.1
-Pillow==9.0.1
+Pillow==10.3.0
 
 # changelogs
 PyYAML==6.0