feat(config-service): amend contract with secret reveal, audit history, revert (FF-EPIC-18) - #695

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/