Test concurrency

[dmail]

• Fix error when "maxExecutionsInParallel" is enabled (above 1)
• Ensure logs are properly ordered when maxExecutionsInParallel is enabled

[github-actions]

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Error: Error while trying to collect info after merging test_concurrency into main.

Error: Command failed: git fetch --no-tags --prune origin test_concurrency
fatal: couldn't find remote ref test_concurrency

    at ChildProcess.exithandler (node:child_process:422:12)
    at ChildProcess.emit (node:events:514:28)
    at maybeClose (node:internal/child_process:1105:16)
    at Socket. (node:internal/child_process:457:11)
    at Socket.emit (node:events:514:28)
    at Pipe. (node:net:337:12)

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_{Generated by @jsenv/file-size-impact during file size impact#6905229520 on c564175}

[github-actions]

---

Error: Error while trying to collect info after merging test_concurrency into main.

Error: Command failed: git fetch --no-tags --prune origin test_concurrency
fatal: couldn't find remote ref test_concurrency

    at ChildProcess.exithandler (node:child_process:422:12)
    at ChildProcess.emit (node:events:514:28)
    at maybeClose (node:internal/child_process:1105:16)
    at Socket. (node:internal/child_process:457:11)
    at Socket.emit (node:events:514:28)
    at Pipe. (node:net:337:12)

---

_{Generated by @jsenv/performance-impact during performance_impact#6905229381 on c564175}