chore: remove continue-on-error from reusable-build

[Boshen]

The current setup is stable, let's fail the build if tests fail

Summary

🤖 Generated by Copilot at 47d3a26

Remove continue-on-error option from test job in .github/workflows/reusable-build.yml. This ensures that the workflow will fail if any tests fail, which improves the quality and reliability of the rspack project.

Related issue (if exists)

Walkthrough

🤖 Generated by Copilot at 47d3a26

• Remove continue-on-error option from test job to ensure workflow fails on test failures (link)

[changeset-bot]

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Latest commit: 47d3a26

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