find_user users helper method no longer overrides find_user API helper method.

What does this MR do?

Renames the API::Users#find_user method that was overriding the find_user method of the helper when using SUDO

This can be better visually explained by looking at:

Does this MR meet the acceptance criteria?

What are the relevant issue numbers?

Closes #37467 (closed)

Edited by Tiago Botelho