Typo fix

app.py

@@ -26,7 +26,7 @@ def get_nasa_neo_data(start_date:str, end_date:str) -> dict:
         data = response.json()
         return data
     else:
-        return f"Error: {response.status_code}")
+        return f"Error: {response.status_code}"
         
 
 # Below is an example of a tool that does nothing. Amaze us with your creativity !