Add codecov

[kin0992]

No description provided.

[Copilot]

Pull Request Overview

This PR adds Codecov integration to the project by updating the code review workflow to generate and upload test coverage reports.

• Updates the Turbo.js configuration to use test:coverage instead of test in the code review pipeline
• Adds a new step in the GitHub Actions workflow to upload coverage data to Codecov using the official codecov-action

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
turbo.json	Changes dependency from test to test:coverage for the code-review task
.github/workflows/code-review.yml	Adds Codecov upload step with authentication token and repository slug

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_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

[codecov]

Welcome to Codecov 🎉

Once you merge this PR into your default branch, you're all set! Codecov will compare coverage reports and display results in all future pull requests.

Thanks for integrating Codecov - We've got you covered ☂️