chore: Docker Cache Cypress
chore: Docker Cache Cypress

We download an identical copy of cypress on every build this costs both
time and disk. Let's use Buildkit caching so that we may reuse a single
copy.

artsy/force,joeyAghion/force,eessex/force,artsy/force,artsy/force,joeyAghion/force,eessex/force,artsy/force-public,eessex/force,joeyAghion/force,eessex/force,artsy/force,artsy/force-public,joeyAghion/force