Bump ipython from 7.8.0 to 7.16.3 in /binder

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] <support@github.com>

binder/requirements.txt

@@ -18,7 +18,7 @@ folium==0.10.0
 idna==2.8
 importlib-metadata==0.23
 ipykernel==5.1.2
-ipython==7.8.0
+ipython==7.16.3
 ipython-genutils==0.2.0
 ipywidgets==7.5.1
 jedi==0.15.1