Remove the need for a bacalhau fork at github.com/coophive/bacalhau

[lukemarsden]

Currently we run with a fork of an old version of bacalhau at https://github.com/CoopHive/bacalhau
The reasons for this are:

1. Newer versions of bacalhau broke GPU scheduling for us, we need to test if this is working now
2. The fork has a couple of changes [1], [2], so that coophive can copy results from the tmp directory rather than going via ipfs on localhost, because ipfs on localhost was being super slow (30-60+ seconds) at resolving local CIDs

This issue is to figure out how to upgrade to the latest version of bacalhau. Can the latest version of bacalhau simultaneously publish to IPFS and write (publish) to a local directory?