Bump ipython from 7.16.1 to 7.16.3 in /requirements
Bump ipython from 7.16.1 to 7.16.3 in /requirements

Bumps [ipython](https://github.com/ipython/ipython) from 7.16.1 to 7.16.3.
- [Release notes](https://github.com/ipython/ipython/releases)
- [Commits](https://github.com/ipython/ipython/compare/7.16.1...7.16.3)

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

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
deepmind/chex,deepmind/chex