test(gooddata-eval): assert exact MAQL string appears in simulated-user prompt

Addresses CodeRabbit review comment on #1718: the regression test only
checked for generic instruction words ("verbatim", "every clause"), not that
expected_output["maql"] itself made it into the prompt -- a regression that
stripped the metric/label reference or filter value entirely could still
pass. Assert the exact MAQL string is present.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Author: Tomkess

packages/gooddata-eval/tests/test_agentic_metric_skill.py

@@ -49,6 +49,7 @@ def test_generate_simulated_response_prompt_preserves_maql_fidelity(monkeypatch)
     call_kwargs = mock_client.chat.completions.create.call_args.kwargs
     sent_prompt = call_kwargs["messages"][0]["content"]
 
+    assert expected_output["maql"] in sent_prompt
     assert "verbatim" in sent_prompt
     assert "every clause" in sent_prompt
     assert "WHERE" in sent_prompt or "filter" in sent_prompt.lower()