bug#67497: [PATCH] Multiple deploy hooks in certbot service

[Felix Lechner]

X-Debbugs-CC: Bruno Victal <mirai@makinata.eu>

Hi,

The certbot program can accept multiple deploy hooks by repeating the
relevant option on the command line. This commit makes that capability
available to users.

Certificates are often used to secure multiple services. It is helpful
to have separate hooks for each service.

It makes the hooks easier to maintain. It's also easier that way to
re-use hooks for another certificate that may not serve to secure the
same combination of services.

Kind regards
Felix