Bump babel from 2.9.1 to 2.10.3 (#3312)

Bumps [babel](https://github.com/python-babel/babel) from 2.9.1 to 2.10.3.
- [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/v2.9.1...v2.10.3

)

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

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