`ApiClient` was hand-composed from `Octokit`, `Api` and `PaginateInterface`, imported directly from separately versioned Octokit packages. That asserted a shape matching what `@actions/github` actually returns, which held only while the versions happened to agree.
`@octokit/plugin-rest-endpoint-methods` v18 adds twelve Actions cache-limit methods. `@actions/github` still depends on `^17.0.0`, so the client it constructs no longer satisfies the v18-derived alias and the build fails.
Deriving the type from the constructor removes the assumption, so the alias tracks whatever `@actions/github` returns.
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
