fix(deps): update dependency langsmith to ^0.6.0

Author: renovate[bot]

pyproject.toml

@@ -45,7 +45,7 @@ langchain-litellm = "^0.3.2"
 langchain-openai = "^1.1.0"
 langgraph = "^1.0.4"
 langmem = "^0.0.30"
-langsmith = "^0.4.50"
+langsmith = "^0.6.0"
 litellm = "^1.53.5"
 markdown2 = "^2.5.2"
 named-enum = "^1.4.0"