re-run job change status to InProgress

[ievdokdm]

Decrease failed count for re-run.
Made status inProgress while at least one build is running.

Also archived conductor track of a previous task.

Fixes: flutter/flutter#183601

[github-actions]

🤖 Hi @ievdokdm, I've received your request, and I'm working on it now! You can track my progress in the logs for more details.

[github-actions]

📋 Review Summary

This Pull Request successfully aims to fix an issue where re-running jobs causes the check suite to incorrectly reflect a failed status instead of in-progress. While the change to the GuardStatus logic resolves the core issue, an unintended state manipulation in the check run update logic introduces severe side effects.

🔍 General Feedback

• State Integrity: The change in unified_check_run.dart decrements failedBuilds prematurely, which will crash the completion handler on a successful re-run and falsely report a success on a failed re-run. This specific file change should be reverted.
• Edge Cases: The new GuardStatus logic is sound for the reported bug but introduces an infinite waitingForBackfill state when evaluating a check suite with zero tasks. Reordering the checks ensures this edge case continues to return succeeded.

[auto-submit]

autosubmit label was removed for flutter/cocoon/4983, because This PR has not met approval requirements for merging. Changes were requested by {jtmcdole}, please make the needed changes and resubmit this PR.
The PR author is a member of flutter-hackers and needs 1 more review(s) in order to merge this PR.

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[auto-submit]

auto label is removed for flutter/cocoon/4983, Failed to merge flutter/cocoon/4983 with Pull request flutter/cocoon/4983 could not be merged: Required status check "ci.yaml validation" is expected..

[jtmcdole]

As admin, I'm bypassing the merge requirements because tests are passing and the review is in; tomorrow cicd label will work for cocoon.