feat: As a user, I want to include the request body in the opa-input, so that I can reason about its contents #17025

Job	Run time
build (ubuntu-20.04, linux_openresty, lua-resty-worker-events, t/plugin/[a-k]*)	36m 39s
build (ubuntu-20.04, linux_openresty, lua-resty-worker-events, t/plugin/[l-z]*)	36m 53s
build (ubuntu-20.04, linux_openresty, lua-resty-worker-events, t/admin t/cli t/config-center-yaml...	25m 13s
build (ubuntu-20.04, linux_openresty, lua-resty-worker-events, t/node t/pubsub t/router t/script ...	25m 44s
build (ubuntu-20.04, linux_openresty, lua-resty-events, t/plugin/[a-k]*)	41m 53s
build (ubuntu-20.04, linux_openresty, lua-resty-events, t/plugin/[l-z]*)	34m 50s
build (ubuntu-20.04, linux_openresty, lua-resty-events, t/admin t/cli t/config-center-yaml t/cont...	24m 3s
build (ubuntu-20.04, linux_openresty, lua-resty-events, t/node t/pubsub t/router t/script t/secre...	24m 52s
	4h 10m 7s

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