evidence(time): RFC 3161 time stamps of the signed records v0.2.1, v0.2.0 and v0.1.5 (DigiCert, 2026-11-03) - #32

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-python@v5. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/