chore: bump library version to 2.3.1

Author: thunderbiscuit

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "bdkpython"
-version = "2.1.0.dev0"
+version = "2.3.1"
 description = "The Python language bindings for the Bitcoin Development Kit"
 readme = "README.md"
 requires-python = ">=3.10"