bug#72250: [ELPA] package--print-email-button can't handle vcard.el package

[Joseph Turner]

On emacs -Q run M-x describe-package RET vcard RET

Backtrace:

Debugger entered--Lisp error: (wrong-type-argument char-or-string-p ("Noah 
Friedman" . "friedman@splode.com"))
  package--print-email-button((("Noah Friedman" . "friedman@splode.com") ("Eric 
Abrahamsen" . "eric@ericabrahamsen.net")))
  describe-package-1(vcard)
  #f(compiled-function () #<bytecode -0xc22abc585433804>)()
  help--window-setup("*Help*" #f(compiled-function () #<bytecode 
-0xc22abc585433804>))
  describe-package(vcard)
  funcall-interactively(describe-package vcard)
  command-execute(describe-package)

GNU Emacs 29.4 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.41, cairo 
version 1.18.0)