RFE: don't use broken-machines-list.txt when pipeline is run forcing hostname
In some cases we want to test in a specific beaker machine like:
The machine is working fine now, but the host still listed on https://arr-cki-prod-lookaside.s3.us-east-1.amazonaws.com/lookaside/beaker-broken-machines/broken-machines-list.txt
I think it is fine to not use this list when someone trigger a pipeline asking to run a test on specific host.