gc: Completely silent while removing files from remote.

[daavoo]

When removing files from remote storage, DVC stops displaying any updates (no progress bar or log messages).

As described in #5961 (comment) , the actual removal of files can take a while and we just don't inform the user of what's happening.

See the attached video where the silence starts.

gc.mp4

The next debug log message comes after completion, which for the linked reproduction (only 100 files) means >2 minutes without displaying anything (the silent time grows linearly with the number of files).

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The issue comes from https://github.com/iterative/dvc-data/blob/main/src/dvc_data/hashfile/gc.py#L28 but I preferred to track it here.

[daavoo]

The proper fix would be to add callbacks to the base fsspec rm and to downstream implementations