Log Message:
py-yubikey-manager,ykman: update to 5.4.0

* Version 5.4.0 (released)
 * Support for YubiKey Bio Multi-protocol Edition.
 * CLI: Improve error messages for several failures.
 * Attempt to send SIGHUP to yubikey-agent if it is blocking the connection.
 * Bugfix: Allow "fido config" to work when no PIN is set on the YubiKey.
 * Bugfix: MacOS - Fix race condition resulting in unneeded delay in fido \ 
commands over
   USB.
 * Bugfix: Linux - Fix error when listing OTP devices when no YubiKeys are attached.
 * Bugfix: OpenPGP - Fix RSA key generation on YubiKey NEO.