feat: add discovery k8s dump data interface #13084

Job	Run time
run ci on centos7 (lua-resty-worker-events, t/plugin/[a-k]*)	34m 5s
run ci on centos7 (lua-resty-worker-events, t/plugin/[l-z]*)	34m 14s
run ci on centos7 (lua-resty-worker-events, t/admin t/cli t/config-center-yaml t/control t/core t...	25m 45s
run ci on centos7 (lua-resty-worker-events, t/node t/pubsub t/router t/script t/secret t/stream-n...	24m 57s
run ci on centos7 (lua-resty-events, t/plugin/[a-k]*)	34m 12s
run ci on centos7 (lua-resty-events, t/plugin/[l-z]*)	33m 45s
run ci on centos7 (lua-resty-events, t/admin t/cli t/config-center-yaml t/control t/core t/debug ...	26m 40s
run ci on centos7 (lua-resty-events, t/node t/pubsub t/router t/script t/secret t/stream-node t/u...	22m 15s
	3h 55m 53s

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