Bump jupyterlab from 2.1.5 to 2.2.10

Bumps [jupyterlab](https://github.com/jupyterlab/jupyterlab) from 2.1.5 to 2.2.10.
- [Release notes](https://github.com/jupyterlab/jupyterlab/releases)
- [Changelog](https://github.com/jupyterlab/jupyterlab/blob/master/CHANGELOG.md)
- [Commits](https://github.com/jupyterlab/jupyterlab/compare/@jupyterlab/application-top@2.1.5...@jupyterlab/application-top@2.2.10)

---
updated-dependencies:
- dependency-name: jupyterlab
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements_dev.txt

@@ -13,7 +13,7 @@ twine
 cruft
 nbclient~=0.5.10
 black==19.10b0
-jupyterlab==2.1.5
+jupyterlab==2.2.10
 ipywidgets==7.5.1
 nodejs==0.1.1
 birdhouse-birdy==0.6.9