Uc-docs: generate API docs HTML

OAS specs located in: https://github.com/unitycatalog/unitycatalog/tree/main/api
Option 1: astro plugin
Option 2: Swagger UI
Option 3: update API redirect links to: https://editor-next.swagger.io/?url=https://raw.githubusercontent.com/unitycatalog/unitycatalog/main/api/all.yaml