STYLE: update the version

this is really an interim minor update as a placeholder between the old style DL networks and new ones

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "antspynet"
-version = "0.2.8"
+version = "0.2.9"
 description = "A collection of deep learning architectures ported to the python language and tools for basic medical image processing."
 readme = "README.md"
 authors = [