Add type ignore comment to fix type checking issue

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

src/crewai/llm.py

@@ -879,10 +879,9 @@ class LLM(BaseLLM):
                     formatted_messages.append(msg)
                     continue
                 
-                formatted_content: list[dict[str, str]] = [{"type": "text", "text": msg["content"]}]
                 formatted_messages.append({
                     "role": msg["role"],
-                    "content": formatted_content
+                    "content": [{"type": "text", "text": msg["content"]}]  # type: ignore
                 })
             return formatted_messages