ci: build linux debug binary directly for CI purpose to speedup PR check

[xc2]

Summary

Build linux debug binary directly instead of on another container

Applied for:

1. github shared runner only
2. the CI Workflow only
3. Test Linux job only that is typically run test for PR

Will reduce the execute time of build step of Test Linux / Build from >7m to ~5m - typically from image pull and toolchain download.

Checklist

• [x] Tests updated (or not required).
• [x] Documentation updated (or not required).