⬆️ Update babel requirement from ~=2.17.0 to ~=2.18.0

Updates the requirements on [babel](https://github.com/python-babel/babel) to permit the latest version.
- [Release notes](https://github.com/python-babel/babel/releases)
- [Changelog](https://github.com/python-babel/babel/blob/master/CHANGES.rst)
- [Commits](python-babel/babel@v2.17.0...v2.18.0)

---
updated-dependencies:
- dependency-name: babel
  dependency-version: 2.18.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements.txt

@@ -3,7 +3,7 @@ pyserial~=3.5          # Serial link to communicate with the display
 PyYAML~=6.0.3          # For themes files
 psutil~=7.2.1          # CPU / disk / network metrics
 pystray~=0.19.5        # Tray icon (all OS)
-babel~=2.17.0          # Date/time formatting
+babel~=2.18.0          # Date/time formatting
 ruamel.yaml~=0.19.1    # For configuration editor
 sv-ttk~=2.6.1          # Tk Sun Valley theme for configuration editor
 tkinter-tooltip~=3.1.2 # Tooltips for configuration editor