fix: Respect use_system_prompt in Converter regeneration

Fixes #2571

Co-authored-by: Devin AI <devin-ai-integration[bot]@users.noreply.github.com>

Co-Authored-By: Joe Moura <joao@crewai.com>

tests/agent_test.py

@@ -259,7 +259,9 @@ def test_cache_hitting():
     def handle_tool_end(source, event):
         received_events.append(event)
 
-    with (patch.object(CacheHandler, "read") as read,):
+    with (
+        patch.object(CacheHandler, "read") as read,
+    ):
         read.return_value = "0"
         task = Task(
             description="What is 2 times 6? Ignore correctness and just return the result of the multiplication tool, you must use the tool.",