swift-openapi-generator as a prebuilt binary?

### Motivation

Hey team,

Are there any plans to provide swift-openapi-generator as a prebuilt binary that could be shipped, e.g., via mise/brew/etc.?

### Proposed solution

Ship this library as a prebuilt binary

### Alternatives considered

_No response_

### Additional information

_No response_

The issue names no files, tests, or entry points. Start by reviewing the repository's current Swift package and plugin distribution setup, then determine what release and package-manager support would be required for a prebuilt swift-openapi-generator binary; done means an agreed distribution approach is documented and implemented.

Written by the indexing model from the issue text.