circuit: Consider v3 hidden service circuit in circuit_expire_building()

For a ready v3 rendezvous circuit, consider it so we don't expire.

Signed-off-by: David Goulet <dgoulet@torproject.org>

src/or/circuituse.c

@@ -651,6 +651,7 @@ circuit_expire_building(void)
            * because that's set when they switch purposes
            */
           if (TO_ORIGIN_CIRCUIT(victim)->rend_data ||
+              TO_ORIGIN_CIRCUIT(victim)->hs_ident ||
               victim->timestamp_dirty > cutoff.tv_sec)
             continue;
           break;