fix: remove crewai dependency and add import guards in crewai components (#8923)

src/backend/tests/unit/api/v1/test_starter_projects.py

@@ -6,5 +6,5 @@ async def test_get_starter_projects(client: AsyncClient, logged_in_headers):
     response = await client.get("api/v1/starter-projects/", headers=logged_in_headers)
     result = response.json()
 
-    assert response.status_code == status.HTTP_200_OK
+    assert response.status_code == status.HTTP_200_OK, response.text
     assert isinstance(result, list), "The result must be a list"

src/backend/tests/unit/custom/custom_component/test_component.py

@@ -9,6 +9,14 @@ from langflow.schema import dotdict
 from langflow.template import Output
 from typing_extensions import override
 
+crewai_available = False
+try:
+    import crewai  # noqa: F401
+
+    crewai_available = True
+except ImportError:
+    pass
+
 
 def test_set_invalid_output():
     chatinput = ChatInput()
@@ -17,6 +25,7 @@ def test_set_invalid_output():
         chatoutput.set(input_value=chatinput.build_config)
 
 
+@pytest.mark.skipif(not crewai_available, reason="CrewAI is not installed")
 def test_set_component():
     crewai_agent = CrewAIAgentComponent()
     task = SequentialTaskComponent()