Fix Carmen Race-Detection test

[cabrador]

This PR changes worker in Carmens race-detection test from db-small-ssd to db-small-nvme.

This test started failing on out of memory issue. nvme worker has slightly higher memory than ssd and fixes this issue.

In future we should divide db-small-ssd worker into one with small memory and other with higher memory.
Issue: #134

[kjezek]

Did you check that there was no higher memory consumption introduced in Carmen? Unless there was no recent hardware change in small-db-ssd, it points at a problem in Carmen, because this pipeline used to work. What is hardware conf. of this node? 32GB?

[kjezek]

Also I think we should have pipelines running on a moderate hardware. We had feedback about too much memory consumed by Carmen, and if we run always on a generous RAM allowance, a high memory consumption stays unnoticed.

[cabrador]

As discussed in private conversation - this error should be solved on Carmen side by reducing memory leaks in tests.