Don't hard-code the TLS connect timeout, use normal connect timeout.

For sudo_logsrvd, this is the relay connect_timeout setting.
For sudoers, this is the log_server_timeout setting.

logsrvd/tls_common.h

@@ -30,6 +30,7 @@ struct tls_client_closure {
     struct sudo_event_base *evbase;	/* duplicated */
     struct sudo_event *tls_connect_ev;
     struct peer_info *peer_name;
+    struct timespec connect_timeout;
     bool (*start_fn)(struct tls_client_closure *);
     bool tls_connect_state;
 };