1.7.2 - fixes to restart behavior

• fixed a bug where comfy exits would not correctly reject a promise, causing the restart behavior to not work
• fixed a bug where a failing warmup workflow was ignored, which allowed the server to start anyways, and pass health checks. Now if the warmup workflow fails, the server will not become healthy, and will instead exit.
• fixed a bug in the release workflow
• fixed a typo in the readme
• add github action workflow for building docker images when a release is published