Update pyproject.toml

Author: beacoder

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "python-agent-harness"
-version = "1.5.5.9"
+version = "1.5.6.0"
 description = "A lightweight, hackable mini-OpenCode written in Python."
 authors = [
     {name = "Huming Chen", email = "chenhuming@gmail.com"}