Update getUserYN function to handle for wrong input values

[hari22yuva]

def getUserYN(self, query="Please Enter Y or N :"):
"""
Reads Y/N user response to the query.

    Args:
    query (str, optional): Query to the user. Defaults to "".

    Returns:
    bool: returns the response. True for 'y'/'Y', False for 'n'/'N'.
    """
    if self.log is not None:
        self.log.debug(query)

    while True:
        response = input(query).strip().lower()  # Converts input to lowercase for simplicity
        if response == 'y' or response == 'Y' :
            return True
        elif response == 'N' or response == 'n':
            return False
        else:
            print("Invalid input. Please enter 'y' for Yes or 'n' for No.")