fix: add integration dependencies for Simple Agent tests

src/lfx/pyproject.toml

@@ -78,6 +78,13 @@ dev = [
     "pytest-cov>=7.0.0",
     "ruff>=0.9.10",
 ]
+integration = [
+    # Dependencies for running Simple Agent and other integration tests
+    "langchain-openai>=0.3.0,<1.0.0",
+    "langchain-community>=0.3.0,<1.0.0",
+    "beautifulsoup4>=4.12.0",
+    "lxml>=5.0.0",
+]
 
 [tool.coverage.run]
 branch = true