Update arguments for yubihsm-shell get pubkey and get wrapped
This is needed to make things work for yubihsm-shell version 2.6.0 and later.
In the changelog https://github.com/Yubico/yubihsm-shell/blob/master/CHANGELOG that change is described as "Add support for asymmetric wrap".
See changes related to yh_com_get_pubkey and yh_com_get_wrapped in src/main.c in the yubihsm-shell git repo: https://github.com/Yubico/yubihsm-shell/commit/080e32d73617ff70b0021a87e8330eac16c0581f
Closes #27