Handle Actions Cancel Workflow Run returning a 202

[omgitsads]

Actions Cancel Workflow Run returns a 202 on success, but this is returned as an error in google/go-github. We need to check if the error is a *github.AcceptedError, and only if not respond that this failed.

[Copilot]

Pull Request Overview

This PR fixes an issue where the GitHub Actions cancel workflow run command incorrectly treats a 202 Accepted response as an error. The GitHub API returns a 202 status code on successful cancellation, but the go-github library wraps this as an AcceptedError which was being handled as a failure.

• Handle github.AcceptedError as a success case instead of an error
• Add test coverage for both successful cancellation (202) and conflict scenarios (409)
• Update test assertion to use Contains for more flexible error message matching

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
pkg/github/actions.go	Add error type checking to handle AcceptedError as success
pkg/github/actions_test.go	Add comprehensive test cases and improve mock response handling