Update VOUCHED list (#3296)

Triggered by [comment](#3129 (comment)) from @brandon-pereira.

Vouch: @28Hus

Author: github-actions[bot]

.github/VOUCHED.td

@@ -25,6 +25,7 @@
 # copilot is listed because vouch only auto-exempts logins ending in "[bot]".
 # GitHub's Copilot coding agent has the login "Copilot", so without an entry
 # its PRs would be closed.
+28hus
 adityapimpalkar
 alex-fedotyev
 alok87