add dehydrated certificate location to ssl_* abstractions

I don't use dehydrated myself, therefore this is based on the comments
on https://build.opensuse.org/request/show/533380

(cherry picked from commit 2e8b902248)
Signed-off-by: John Johansen <john.johansen@canonical.com>

profiles/apparmor.d/abstractions/ssl_certs

@@ -27,3 +27,8 @@
   # acmetool
   /var/lib/acme/certs/*/chain r,
   /var/lib/acme/certs/*/cert r,
+
+  # dehydrated
+  /etc/dehydrated/certs/*/cert-*.pem r,
+  /etc/dehydrated/certs/*/chain-*.pem r,
+  /etc/dehydrated/certs/*/fullchain-*.pem r,

profiles/apparmor.d/abstractions/ssl_keys

@@ -20,3 +20,6 @@
   /var/lib/acme/live/* r,
   /var/lib/acme/certs/** r,
   /var/lib/acme/keys/** r,
+
+  # dehydrated
+  /etc/dehydrated/certs/*/privkey-*.pem r,