Update otpclient to version 3.1.3 / rev 22 via SR 1058252
https://build.opensuse.org/request/show/1058252
by user polslinux + dimstar_suse
- Update to 3.1.3:
* Fix Aegis import/export when using long pwds.
* Fix secret service cleanup
* Show the correct error message when import fails
* Use g_utf8_strlen instead of strlen
* Add libcotp >= 2.0 compatibility