Generated module maps stay incremental across warm test runs

Warm tuist test --build-only runs for projects that use generated dependency module maps now stay incremental instead of rebuilding every Swift file. Active Derived/ModuleMaps/*-deps.modulemap and Derived/FrameworkSearchPaths/*.resp files keep stable modification times across regenerations (writes are skipped when the existing bytes already match), while stale files in those directories are still cleaned up via scoped include patterns.