Update Python dependency in pyproject.toml (#748)

pyproject.toml

@@ -7,7 +7,7 @@ name = "llms-from-scratch"
 version = "1.0.17"
 description = "Implement a ChatGPT-like LLM in PyTorch from scratch, step by step"
 readme = "README.md"
-requires-python = ">=3.10"
+requires-python = ">=3.10,<3.13"
 dependencies = [
     "torch>=2.3.0",
     "jupyterlab>=4.0",