Update _version.py to use dev2
0.40.0-dev0 has been pushed up to PyPI already
0.40.0-dev1 was already used in the git history prior to creation of 0.39.3
so just to be safe, using dev2
# DO NOT EDIT THIS FILE!
# This file has been autogenerated by `poetry run pymedphys dev propagate`
-version_info = [0, 40, 0, "dev0"]
-__version__ = "0.40.0-dev0"
+version_info = [0, 40, 0, "dev2"]
+__version__ = "0.40.0-dev2"
