Add multi-zip pocket workflow

[neil-morrison44]

• so this reads the folders in /Cores then starts a job to add a hash version then zip each, before commiting them all in the same way the existing single-zip one does

• I'm not clearing the existing zips from the folders but the workflow could if wanted

• this'll need https://github.com/jotego/jtbin/pull/306 merged in first or all the cores will fail validation

• I've tested this locally using https://github.com/nektos/act & it seems all is good (once the cores pass validation) though I had to cut down on the number of cores locally since my local docker really didn't like having ~16 jobs all checking out the whole repo at once, but all I tested with ended up in the zips folder & commited

[jotego]

Thank you! Just for my education: what is the advantage of having so many steps in the yaml passing data from one to the next rather than doing everything in a single script?

[neil-morrison44]

Couple of things:

• In theory it’ll run faster (not that that’s really a concern here) since it’ll parallelise everything
• means one / more cores can fail zipping / validation without failing the whole workflow - and GitHub’ll present each failing one in a way where it should be fairly easy to work out what’s going on

[jotego]

Thank you :-)