CI/CD untouched files detector

Is your feature request related to a problem? Please describe.

During updates files are left behind, and refactoring opportunities are hidden. Ex: source map in Here API.

Describe the solution you'd like

Find FLOSS software that analyze git repository and create regular issues with a report of dead code / untouched files.

Describe alternatives you've considered

N/A

Additional context

N/A

Could this issue impact on users private data?