Don't try to collect tests in `tests/unit/modules/inspectlib/tree_test/`
Don't try to collect tests in `tests/unit/modules/inspectlib/tree_test/`

Signed-off-by: Pedro Algarvio <09cbe6caca393bd5bff64d4c1f1ad660b906a807@vmware.com>

saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt