⬆️ Update pillow requirement from ~=11.0.0 to ~=11.1.0

Updates the requirements on [pillow](https://github.com/python-pillow/Pillow) to permit the latest version.
- [Release notes](https://github.com/python-pillow/Pillow/releases)
- [Changelog](https://github.com/python-pillow/Pillow/blob/main/CHANGES.rst)
- [Commits](python-pillow/Pillow@11.0.0...11.1.0)

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

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

Author: dependabot[bot]

requirements.txt

@@ -13,7 +13,7 @@ ping3~=4.0.8           # ICMP ping implementation using raw socket
 
 # Image generation
 Pillow~=10.4.0; python_version < "3.9"    # For Python 3.8 max.
-Pillow~=11.0.0; python_version >= "3.9"  # For Python >=3.9
+Pillow~=11.1.0; python_version >= "3.9"  # For Python >=3.9
 
 # Efficient image serialization
 numpy~=1.24.4; python_version < "3.9"   # For Python 3.8 max.