Update ipython to 8.4.0

[pyup-bot]

This PR updates ipython from 6.2.1 to 8.4.0.

Changelog

7.18.1

We do not use GitHub release anymore. Please see PyPI https://pypi.org/project/ipython/

7.9.0

None

7.8.0

None

7.7.0

None

7.6.1

None

7.6.0

None

7.5.0

None

7.4.0

None

7.3.0

None

7.2.0

None

7.1.1

None

7.1.0

None

7.0.1

None

7.0.0-doc
None

7.0.0

None

7.0.0rc1

None

7.0.0b1

None

Links

• PyPI: https://pypi.org/project/ipython
• Changelog: https://pyup.io/changelogs/ipython/
• Homepage: https://ipython.org