chore(deps): update dependency langchain-core to v0.1.5

requirements.txt

@@ -34,7 +34,7 @@ jsonpointer==2.4; python_version >= '2.7' and python_version not in '3.0, 3.1, 3
 l18n==2021.3
 langchain==0.0.352; python_version < '4.0' and python_full_version >= '3.8.1'
 langchain-community==0.0.6; python_version < '4.0' and python_full_version >= '3.8.1'
-langchain-core==0.1.3; python_version < '4.0' and python_full_version >= '3.8.1'
+langchain-core==0.1.5; python_version < '4.0' and python_full_version >= '3.8.1'
 langsmith==0.0.75; python_version < '4.0' and python_full_version >= '3.8.1'
 marshmallow==3.20.1; python_version >= '3.8'
 multidict==6.0.4; python_version >= '3.7'