bump version to 0.4.0

Author: andreashappe

pyproject.toml

@@ -17,7 +17,7 @@ description = "Helping Ethical Hackers use LLMs in 50 lines of code"
 readme = "README.md"
 keywords = ["hacking", "pen-testing", "LLM", "AI", "agent"]
 requires-python = ">=3.10"
-version = "0.4.0-dev"
+version = "0.4.0"
 license = { file = "LICENSE" }
 classifiers = [
     "Programming Language :: Python :: 3",