This attempts to build off a lighter docker image than the CPG driver
Previous attempt at this used a global Hail dockerfile as a base image - that's not valid, as QoB within our infrastructure requires us to use a specific version of Hail which has been deployed within our infra
The benefits from this optimisation are limited by the fact that within CPG infra we have to use a CPG-built version of Hail
Proposed Changes
Pins the Hail hash to the version build from our hail fork
uses a similar build plan to the driver image, minus a lot of irrelevant weight
Fixes
Proposed Changes
Checklist