Summary: Another step in the new build model. Test apps should be built in containers so we can control their environments separately from bazel.

Test Plan: Existing tests

Reviewers: #stirling, yzhao

Reviewed By: #stirling, yzhao

Subscribers: yzhao
Signed-off-by: Omid Azizi <oazizi@pixielabs.ai>

Differential Revision: https://phab.corp.pixielabs.ai/D10420

GitOrigin-RevId: 92bb2d1154ade22b581defc8d8e1f362ba16da52