Contributors macro limit paramater is not taken into account

[lamblinc]

When setting a limit parameter for the Contributors macro, it has no effects.

Steps to reproduce the problematic behavior:

1. Insert the macro in a page with more than 5 contributors
2. Set the "limit" parameter to 5
3. Save and see the result

Expected behavior
Only having 5 contributors displayed

Actual behavior
All contributors displayed

Environment

• OS: NA
• Browser Chromium
• XWiki version 16.10.2
• App version 1.26.16