HostTest.conflictResolutionReuseExpired sometimes fails
distcheck on Ubuntu 21.04
https://jenkins.aws.isc.org/job/kea-dev/job/distcheck/459/execution/node/209/log/?consoleFull
03:55:05 [ RUN ] HostTest.conflictResolutionReuseExpired
03:55:05 unknown file: Failure
03:55:05 C++ exception with description "failed to update the lease with address 2001:db8:1::1 - lease has changed in database" thrown in the test body.
03:55:05 [ FAILED ] HostTest.conflictResolutionReuseExpired (1 ms)