fix: etcd sync data checker should work (#11457) #15

Job	Run time
build (ubuntu-20.04, linux_openresty, lua-resty-worker-events, t/http3/admin)	3m 56s
build (ubuntu-20.04, linux_openresty, lua-resty-worker-events, t/plugin/[a-k]*)	8m 28s
build (ubuntu-20.04, linux_openresty, lua-resty-worker-events, t/plugin/[l-z]*)	7m 49s
build (ubuntu-20.04, linux_openresty, lua-resty-worker-events, t/admin t/cli t/config-center-yaml...	7m 55s
build (ubuntu-20.04, linux_openresty, lua-resty-worker-events, t/node t/pubsub t/router t/script ...	2m 49s
build (ubuntu-20.04, linux_openresty, lua-resty-events, t/http3/admin)	11m 10s
build (ubuntu-20.04, linux_openresty, lua-resty-events, t/plugin/[a-k]*)	5m 31s
build (ubuntu-20.04, linux_openresty, lua-resty-events, t/plugin/[l-z]*)	13m 13s
build (ubuntu-20.04, linux_openresty, lua-resty-events, t/admin t/cli t/config-center-yaml t/cont...	4m 29s
build (ubuntu-20.04, linux_openresty, lua-resty-events, t/node t/pubsub t/router t/script t/secre...	6m 48s
	1h 12m 8s

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