DAOS-15540 cart: Change proto query default timeout

[jolivier23]

Set it to 5 seconds so we can try a different target more quickly if a rank is down.

Features: rebuild

Required-githooks: true

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[github-actions[bot]]

Ticket title is 'Engine unresponsive at scale with tcp and multi-recv enabled' Status is 'In Progress' Labels: 'GCP,scrubbed,triaged' https://daosio.atlassian.net/browse/DAOS-15540

[jolivier23]

sorry, @mchaarawi I noticed I didn't like the if statement after removing the API call