Refactor: report workflow to support new grouping UI

[kneerose]

List of changes

• Add script to set the GROUP_NAME env from the selected deployment
• Append GROUP_NAME before a report on all scripts of the workflow
• Skip commit status for test triggered by schedule
• Add FAUCET_STAKE_PRIVATE instead of FAUCET_STAKE_PKH on integration workflow
• Remove unnecessary register-report steps and script

Checklist

• related issue
• My changes generate no new warnings
• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the changelog
• I have added tests that prove my fix is effective or that my feature works

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[github-actions]

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[github-actions]

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