Related Issues

#11734

Proposed Changes

This PR creates a new GitHub Actions workflow (build.yml) that performs the following jobs previously handled exclusively by CircleCI:

• build

Additional Info

You can find an example run of the workflow at: https://github.com/filecoin-project/lotus/actions/runs/8362615782

Unlike the CircleCI build job, the one introduced here is not followed by check and test jobs. Instead, it is performed as a standalone job. This allows us to still report on the success/failure of building lotus binary while not holding up check and test jobs for ~3 minutes.

The newly added makes use of 2 helper actions:

• install-ubuntu-deps: which installs ocl-icd-opencl-dev libhwloc-dev pkg-config on the runner
• install-go: which installs go on the runner (it uses the version it finds in the go.mod file)

The CircleCI counterpart of the build job can only be removed once all the check and test jobs are fully migrated to GHA.

Checklist

Before you mark the PR ready for review, please make sure that:

• Commits have a clear commit message.
• PR title is in the form of of <PR type>: <area>: <change being made>
  • example: fix: mempool: Introduce a cache for valid signatures
  • PR type: fix, feat, build, chore, ci, docs, perf, refactor, revert, style, test
  • area, e.g. api, chain, state, market, mempool, multisig, networking, paych, proving, sealing, wallet, deps
• If the PR affects users (e.g., new feature, bug fix, system requirements change), update the CHANGELOG.md and add details to the UNRELEASED section.
• New features have usage guidelines and / or documentation updates in
  • Lotus Documentation
  • Discussion Tutorials
• Tests exist for new functionality or change in behavior
• CI is green