Make console messages consistent

This MR makes the necessary Ruby and golang changes to make informational messages more consistent with how broadcast message look:

Current

$ git push
Internal API unreachable
fatal: Could not read from remote repository.

vs.

New

$ git push
remote:
remote: ========================================================================
remote:
remote: Internal API unreachable
remote:
remote: ========================================================================
remote:
fatal: Could not read from remote repository.

• EE MR: gitlab!16584 (merged)
• Related: gitlab#14631 (closed)