Use /livez/ for the default API liveness probe

[caiconkhicon]

/status/ runs database queries, and with object storage a SUM over all artifacts (pulp/pulpcore#8196). When the database is slow, the liveness probe times out and restarts healthy API pods. /livez/ only checks that the API process answers.

closes: #1696

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[openshift-ci]

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[openshift-ci]

Hi @caiconkhicon. Thanks for your PR.

I'm waiting for a pulp member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work.

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[balasankarc]

/ok-to-test