release 0.0.11 (#116)

* Need to relock poetry file
* Drop support for python 3.8 consistent with langchain-core

Author: eyurtsev

poetry.lock

@@ -11,7 +11,7 @@ license = "MIT"
 "Source Code" = "https://github.com/langchain-ai/langchain-postgres/tree/master/langchain_postgres"
 
 [tool.poetry.dependencies]
-python = "^3.8.1"
+python = "^3.9"
 langchain-core = ">=0.2.13,<0.4.0"
 psycopg = "^3"
 psycopg-pool = "^3.2.1"