Update boilerplate to support OpenAPI 3.0
Currently the boilerplate produces OpenAPI 2.0 specs, update this to produce Open API 3.0 specs
GitLab will be updated on 12-Feb-2026 between 12:00 and 14:00. There may be small periods of service instability.
Currently the boilerplate produces OpenAPI 2.0 specs, update this to produce Open API 3.0 specs