Extract a common_args bash array with the runtime arguments
shared by both unit and integration test containers (name,
workdir, rm, seccomp, volumes). The unit test block uses
common_args plus its own device and cap-add flags. After
the unit block, common_args is extended with the privileged,
ipc, net, tmpfs, and workload-volume flags used by all
integration test groups.
Assisted-by: GitHub Copilot:Claude-Opus-4.6
Signed-off-by: Muminul Islam <muislam@microsoft.com>