update version in project.toml

Author: ccoffrin

Project.toml

@@ -2,7 +2,7 @@ name = "GraphicalModelLearning"
 uuid = "73787735-dbe8-5e05-9488-dc58b1b075d0"
 authors = ["Marc Vuffray, Carleton Coffrin"]
 repo = "https://github.com/lanl-ansi/GraphicalModelLearning.jl.git"
-version = "0.2.1"
+version = "0.2.2"
 
 [deps]
 Ipopt = "b6b21f68-93f8-5de0-b562-5493be1d77c9"