Bump version in pyproject.toml

Author: stephenfreund

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "ChatDBG"
-version = "0.6.3"
+version = "0.6.4"
 authors = [
   { name="Emery Berger", email="[email protected]" },
   { name="Stephen Freund", email="[email protected]" },