Executing the borges_consumer part gave an error: /bin/sh: borges: not found. Used Docker knowledge to check the Quay repo and see that latest tag is pointing to the wrong version (something between 0.11 and 0.12 - it has an unique hash for some reason, which shouldn't be the case). Changed the version to the 0.16.2 manually and it worked.
From @dennwc (more):