Upgraded to xeus-python-shell 0.6

environment-dev.yml

@@ -13,7 +13,7 @@ dependencies:
   - xtl>=0.7, <0.8
   - pybind11>=2.6.1,<3.0
   - pybind11_json>=0.2.6,<0.3
-  - xeus-python-shell>=0.5.0,<0.6
+  - xeus-python-shell>=0.6.0,<0.7
   - debugpy>=1.6.5
   # Test dependencies
   - pytest