Log Message:
pam-u2f: security update to 1.1.1

* Version 1.1.1 (released 2021-05-19)
** Fix an issue where PIN authentication could be bypassed (CVE-2021-31924).
** Fix an issue with nodetect and non-resident credentials.
** Fix build issues with musl libc.
** Add support for self-attestation in pamu2fcfg.
** Fix minor bugs found by fuzzing.