WIP: Resolve "Speed up build by parallelizing download of cached www-gitlab-com repo"
This MR is being closed without merge. We have decided to re-open and re-schedule the docker-based approach.
For more context, see: !40665 (comment 287868133)
In !40665 (merged), we implemented object-store caching of the
But, the time to download and unzip the file is still very long.
See if we can possibly parallelize the download and/or unzipping of the file, as described in this comment
Closes #6533 (closed)