[sdlf-foundations][cdk] use python 3.11 for cdk

seedfarmer just does not play well with python3.12 currently

Author: cnfait

sdlf-foundations/pyproject.toml

@@ -15,7 +15,7 @@ packages = [
 exclude = ["**/*.yaml"]
 
 [tool.poetry.dependencies]
-python = "^3.12"
+python = "^3.11"
 aws-cdk-lib = "^2.159.1"
 constructs = ">=10.0.0,<11.0.0"