Update test in image to include tide-testing but ignore mongo endpoint

[Anton Whalley]

Currently the image downloads when roche test is ran
This is because the cargo test --lib line had to be removed as mongo wasn't available in the quay.io environment.
16b7075

The test here https://github.com/roche-rs/mongodb/blob/main/image/src/lib.rs#L42 should probably be removed but still include tide-testing