Fix retrieving docker build workflow id

[tomusdrw]

No description provided.

[Copilot]

Pull Request Overview

This PR updates the GitHub Actions workflow to correctly retrieve the Docker build workflow ID by fixing the workflow name reference and improving the jq selector logic.

• Updates the workflow name from "PR Benchmark" to "Benchmark Typeberry PR"
• Fixes the jq selector to properly match the "Build - Docker" workflow name and adds proper parentheses for the path condition

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