fix: Resolve final W292 newline error

Author: Arzoo1701

other/palindrome_check.py

@@ -33,5 +33,6 @@ def is_palindrome(text: str) -> bool:
 if __name__ == "__main__":
     # Standard boilerplate for running documentation examples as tests.
     import doctest
+
     doctest.testmod()
-    
+    # Ensure there is ONE blank newline at the end of this file (to fix W292)