Loosen Python requirement to support 3.12

Author: krishnan-chandra

pyproject.toml

@@ -9,7 +9,7 @@ description = "DSPy"
 readme = "README.md"
 authors = [{ name = "Omar Khattab", email = "okhattab@stanford.edu" }]
 license = { text = "MIT License" }
-requires-python = ">=3.9, <3.12"
+requires-python = ">=3.9, <3.13"
 classifiers = [
     "Development Status :: 3 - Alpha",
     "Intended Audience :: Science/Research",
@@ -81,7 +81,7 @@ keywords = ["dspy", "ai", "language models", "llm", "openai"]
 
 
 [tool.poetry.dependencies]
-python = ">=3.9,<3.12"
+python = ">=3.9,<3.13"
 pydantic = "^2.0"
 backoff = "^2.2.1"
 joblib = "^1.3.2"