Replace Nth Consonant

Problem Overview

• Transform a text by replacing every nth consonant with the next consonant, preserving case and wrapping z→b (Z→B).
• Input: a string and an integer n; Output: the updated string; constraints are unspecified.
• Domain: string manipulation and text processing.
• This coding interview problem was asked in Duolingo interviews.
• Useful as an interview question focused on character handling and edge cases.