utils/github: fix failing test

[botantony]

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Workflow logs and artifacts for Homebrew/homebrew-core#191680 were removed

[Copilot]

Pull Request Overview

This PR fixes a failing test in the GitHub utilities test suite by updating workflow run IDs and artifact URLs to use currently available data, as the previous test data (workflow run #191680) had its artifacts removed.

• Updated workflow run ID from "191680" to "252626" in two test cases
• Updated expected artifact URL to match the new workflow run's artifact ID

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[ZhongRuoyu]

Thanks!