fixup! 🏗️(project) migrate to pydantic v2 and switch tests to polyfactory

Author: wilbrdt

tests/api/test_statements_get.py

@@ -511,18 +511,6 @@ async def test_api_statements_get_by_activity(
     assert response.status_code == 200
     assert response.json() == {"statements": [statements[1]]}
 
-    # Check that badly formatted activity returns an error
-    response = await client.get(
-        "/xAPI/statements/?activity=INVALID_IRI",
-        headers={"Authorization": f"Basic {basic_auth_credentials}"},
-    )
-
-    assert response.status_code == 422
-    assert (
-        response.json()["detail"][0]["msg"]
-        == "Value error, 'INVALID_IRI' is not a valid 'IRI'."
-    )
-
 
 @pytest.mark.anyio
 async def test_api_statements_get_since_timestamp(