Dockerised binding regeneration

[keynmol]

Fixes GRAPH-709

Several of us had problems with local environment trying to regenerate bindings. We're switching to the dockerised build as a stopgap solution.

Test plan

• new script will be used on CI

[keynmol]

all done

[kritzcreek]

Hmm looks like the image publishing step failed on my PR after merging:

https://github.com/sourcegraph/scip/actions/runs/9691568032/job/26743288072

should we rip that out for now?

[keynmol]

I will fix that workflow, I have a working one I can just copypaste.