nsec3param: set TTL to the same like for NSEC3...

...the change does not take effect until NSEC3PARAM is updated for other reason (eg resalt)

src/knot/dnssec/nsec3-chain.c

@@ -790,7 +790,7 @@ int knot_nsec3_fix_chain(zone_update_t *update,
 
 	// ensure that the salt has not changed
 	if (!knot_nsec3param_uptodate(update->new_cont, params)) {
-		int ret = knot_nsec3param_update(update, params);
+		int ret = knot_nsec3param_update(update, params, ttl);
 		if (ret != KNOT_EOK) {
 			return ret;
 		}