Wrong configuration file indicated by ruff in verbose mode

### Summary

If for example I have a pyproject.toml at repository root, and a ruff.toml inside debug/ subdirectory, then the settings of ruff.toml are the ones properly used for the launch, however the output improperly reports pyproject.toml as the configuration file (which is false).

```
❯ ruff check debug/ -v
[2025-06-12][12:17:55][ruff::resolve][DEBUG] Using configuration file (via parent) at: /[redacted]/pyproject.toml
[2025-06-12][12:17:55][ruff_workspace::pyproject][DEBUG] No `target-version` found in `ruff.toml`
```

I haven't tested all the cases, but I guess each hierarchical configuration file activated during the processing, should be indicated as so, in the program output (with verbose mode on).

### Version

0.11.13

Start by reproducing `ruff check debug/ -v` with `pyproject.toml` at the repository root and `ruff.toml` in `debug/`, then trace the configuration resolution and verbose logging. Done means verbose output identifies the hierarchical configuration file whose settings are actually used, including the `ruff.toml` case.

Written by the indexing model from the issue text.