docker-compose is deprecated. We should use docker compose instead.
Luckily concourse/unit installs docker-ce that should include the
compose plugin already

- projet name has to be lowercase
- version in docker-compose file is not needed
- --filter is replaced with --status

Signed-off-by: Rui Yang <rui.yang@broadcom.com>

We were waiting volumes from previous deployment to be GCed to make
sure they are not used for new build. In previous version, these tests
were flaky already by the reason that there is no garantee that new
volumes haven't being created before old volumes are deleted.

Now with newer version of Concourse, the check of base resource type
'mock' happens right after the web node started so the method
'waitForVolumeGC' no longer works as the volume list will always contain
those new volumes for the resouce type check.

Instead, we now keep a record of old volumes and we just need to make
sure after new deployment, those old volumes are GCed i.e. volume
listing should not contain any old volume from previous deployment.

The waiting time is also increased to 5 min as in the downgrade test,
the volumes of the one-off build requires longer time to be GCed.

Signed-off-by: Rui Yang <rui.yang@broadcom.com>

Co-authored-by: Wayne Adams <wayne.adams@broadcom.com>
Co-authored-by: Rui Yang <ruiya@vmware.com>
Signed-off-by: Wayne Adams <wayne.adams@broadcom.com>

by configuring the one off build grace period, the downgrade test
should run fast enough that original wait time is sufficient.

Also discover that the "panic test timeout 600s" is caused by the
default go test timeout (10min), in a way that setting the wait time
in testify.require.Eventually won't matter. To increase the default
timeout, do "go test --timeout xxx". By configuring the one off grace
period, we don't need to use that flag.

Signed-off-by: Rui Yang <rui.yang@broadcom.com>