fix: Resolve final W293 whitespace error

Author: Arzoo1701

other/palindrome_check.py

@@ -33,5 +33,4 @@ def is_palindrome(text: str) -> bool:
 if __name__ == "__main__":
     # Standard boilerplate for running documentation examples as tests.
     import doctest
-    doctest.testmod()
-    
+    doctest.testmod()