Bump babel from 2.12.1 to 2.13.0

Bumps [babel](https://github.com/python-babel/babel) from 2.12.1 to 2.13.0.
- [Release notes](https://github.com/python-babel/babel/releases)
- [Changelog](https://github.com/python-babel/babel/blob/master/CHANGES.rst)
- [Commits](https://github.com/python-babel/babel/compare/v2.12.1...v2.13.0)

---
updated-dependencies:
- dependency-name: babel
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

requirements.txt

@@ -1,5 +1,5 @@
 certifi==2023.7.22
-babel==2.12.1
+babel==2.13.0
 flask-babel==3.1.0
 flask==2.3.3
 jinja2==3.1.2