fix #1363 hardlink support broken. #526

Job	Run time
static_flow test on ubuntu-22.04	10m 4s
static_flow test on ubuntu-24.04	11m 38s
no_mirror test on ubuntu-22.04	12m 15s
no_mirror test on ubuntu-24.04	12m 18s
flakey_broker test on ubuntu-22.04	40m 57s
flakey_broker test on ubuntu-24.04	40m 57s
dynamic_flow test on ubuntu-22.04	29m 16s
dynamic_flow test on ubuntu-24.04	13m 45s
restart_server test on ubuntu-22.04	12m 30s
restart_server test on ubuntu-24.04	12m 56s
	3h 16m 36s

Provide feedback