community: remove python version cap (#10)

Author: ccurme

libs/community/pyproject.toml

@@ -5,7 +5,7 @@ build-backend = "pdm.backend"
 [project]
 authors = []
 license = { text = "MIT" }
-requires-python = "<4.0,>=3.9"
+requires-python = ">=3.9"
 dependencies = [
     "langchain-core<1.0.0,>=0.3.55",
     "langchain<1.0.0,>=0.3.24",