Bump ipython from 7.8.0 to 7.16.3 (#312)

Bumps [ipython](https://github.com/ipython/ipython) from 7.8.0 to 7.16.3.
- [Release notes](https://github.com/ipython/ipython/releases)
- [Commits](ipython/ipython@7.8.0...7.16.3)

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements.txt

@@ -2,7 +2,7 @@ aiohttp==3.7.4
 attrs==19.2.0
 flake8==3.7.8
 ipdb==0.12.2
-ipython==7.8.0
+ipython==7.16.3
 pytest==5.2.1
 pytest-cov==2.8.1
 pytest-mock==1.11.1