fix: consumer key duplication check #1316

Job	Run time
build (ubuntu-latest, linux_openresty, lua-resty-worker-events, t/http3/admin)	15m 49s
build (ubuntu-latest, linux_openresty, lua-resty-worker-events, t/plugin/[a-k]*)	21m 37s
build (ubuntu-latest, linux_openresty, lua-resty-worker-events, t/plugin/[l-z]*)	35m 32s
build (ubuntu-latest, linux_openresty, lua-resty-worker-events, t/admin t/cli t/config-center-yam...	26m 50s
build (ubuntu-latest, linux_openresty, lua-resty-worker-events, t/node t/pubsub t/router t/script...	25m 4s
build (ubuntu-latest, linux_openresty, lua-resty-events, t/http3/admin)	13m 41s
build (ubuntu-latest, linux_openresty, lua-resty-events, t/plugin/[a-k]*)	19m 11s
build (ubuntu-latest, linux_openresty, lua-resty-events, t/plugin/[l-z]*)	35m 8s
build (ubuntu-latest, linux_openresty, lua-resty-events, t/admin t/cli t/config-center-yaml t/con...	32m 23s
build (ubuntu-latest, linux_openresty, lua-resty-events, t/node t/pubsub t/router t/script t/secr...	27m 7s
	4h 12m 22s

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