[ci] Runtime Optimizations

Ursa (9R)requested to merge
ursa/ci into develop

This strips down the build context, adds caching for trunk tooling, add caching for Golang modules/build, and fixes minor leaks in simulation causing slight reduction in parallelism (reduced simulation runtime ~3 minutes).

See manually retried unit test and lint jobs after cache population (mileage may vary depending on what is invalidated for a given change):

Edited by Ursa (9R)

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