Update babel requirement from ~=2.14 to ~=2.15

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@v2.14.0...v2.15.0)

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

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

requirements.txt

@@ -1,4 +1,4 @@
-Babel~=2.14
+Babel~=2.15
 beautifulsoup4~=4.12
 geocoder~=1.38
 lxml~=5.1