[CI] Create a GitHub Action for Tusk Drift runs

[jy-tan]

Thoughts:

• Simplify Tusk Drift setup (install go, checkout CLI, build CLI, run trace tests)
• Allows us to create check runs for additional information (e.g., if user has no seat) with GITHUB_TOKEN

  await octokit.checks.create({
    owner, repo,
    name: 'Tusk Drift',
    head_sha: sha,
    conclusion: 'neutral',  // or 'skipped'
    output: {
      title: 'Skipped',
      summary: 'PR creator does not have a Tusk Cloud seat'
    }
  });