Fix ticker hardcoding in prompt (#28)

Author: saksham0161

tradingagents/dataflows/interface.py

@@ -713,7 +713,7 @@ def get_stock_news_openai(ticker, curr_date):
                 "content": [
                     {
                         "type": "input_text",
-                        "text": f"Can you search Social Media for {ticker} on TSLA from 7 days before {curr_date} to {curr_date}? Make sure you only get the data posted during that period.",
+                        "text": f"Can you search Social Media for {ticker} from 7 days before {curr_date} to {curr_date}? Make sure you only get the data posted during that period.",
                     }
                 ],
             }