Summary:
This prevents any clients from fataling, but also ensures that clients
don't need to send config values.

Always respond with passthrough true from cloudapi so that older clients continue
to work as expected.

Test Plan: Deploy to staging and test.

Reviewers: michelle, zasgar

Reviewed By: michelle
Signed-off-by: Vihang Mehta <vihang@pixielabs.ai>

Differential Revision: https://phab.corp.pixielabs.ai/D11859

GitOrigin-RevId: 3f90a596126089b0663162cba9177aca5e97da6a