Update test data for new home page

This follows up to commit ce519dab.

test-data/expected-output.txt

 ;;; THIS FILE GENERATED WAS AUTOMATICALLY GENERATED BY:
 ;;; 
-;;;   https://github.com/kfogel/mailaprop/
+;;;   https://code.librehq.com/kfogel/mailaprop
 ;;; 
 ;;; YOU PROBABLY DON'T WANT TO EDIT THIS FILE BY HAND.
 ;;; SEE THE MAILAPROP DOCUMENTATION FOR MORE INFORMATION.