Update ipython requirement from ~=7.22.0 to ~=7.23.0 (#66)

Updates the requirements on [ipython](https://github.com/ipython/ipython) to permit the latest version.
- [Release notes](https://github.com/ipython/ipython/releases)
- [Commits](ipython/ipython@7.22.0...7.23.0)

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

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

Author: dependabot[bot]

requirements-dev.txt

@@ -10,7 +10,7 @@
 coverage ~=5.5
 flake8 ~=3.9.1
 pytest ~=6.2.3
-ipython ~=7.22.0
+ipython ~=7.23.0
 numpydoc ~=1.1.0
 sphinx ~=3.5.4
 sphinx-copybutton ~=0.3.1