Try to improve the printing for cached downloads from kaggle/colab

[mattdangerw]

This is an attempt to fix this issue when running kagglehub from a cache.

I don't think we want to log as if we are attaching an asset every time we read something from the cache.

• We have separate UI in Kaggle with a live progress indicate showing how mounting a model is going.
• We might hit kagglehub for the same asset multiple times, it shouldn't "attach" each time (nor does it).
• Ideally we don't log anything if we don't find the file being requested.

[mattdangerw]

Alternately we could figure out a way to only log each asset once, if it is found in the cache. That seems slightly misleading, as IIUC the whole directory is just mounted once, not asset by asset. And it would involve some state to track which call is the first download call for each asset.

[rosbo]

/gcbrun

[rosbo]

/gcbrun