Merge pull request #69957 from ifed01/wip-ifed-fix-fio-msgr-build

test/fio_ceph_messenger: fix building errors

Reviewed-by: Max Kellermann <max.kellermann@ionos.com>
Reviewed-by: Radoslaw Zarzynski <rzarzyns@redhat.com>
Reviewed-by: Kefu Chai <k.chai@proxmox.com>