docs: update TinyRobot documentation to v1.0.0 - #134

The ssh-private-key argument is empty. Maybe the secret has not been configured, or you are using a wrong secret name in your workflow file.

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: webfactory/ssh-agent@v0.8.0. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/