added dinov2

[gisilvs]

What does this PR do?

Fixes #3110

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• Did you make sure to update the docs?
• Did you write any new necessary tests?

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📚 Documentation preview 📚: https://torchmetrics--3186.org.readthedocs.build/en/3186/

[SkafteNicki]

I manage to refactor the new dinov2 feature extractor into the existing fid implementation keeping backwards compatibility

[codecov]

Codecov Report

❌ Patch coverage is 19.29825% with 46 lines in your changes missing coverage. Please review.
✅ Project coverage is 37%. Comparing base (10f48cc) to head (3450cef).
⚠️ Report is 3 commits behind head on master.

❌ Your project check has failed because the head coverage (37%) is below the target coverage (95%). You can increase the head coverage or adjust the target coverage.

❗ There is a different number of reports uploaded between BASE (10f48cc) and HEAD (3450cef). Click for more details.

HEAD has 2 uploads less than BASE

Flag	BASE (10f48cc)	HEAD (3450cef)
gpu	1	0
unittest	1	0

Additional details and impacted files

@@            Coverage Diff            @@
##           master   #3186      +/-   ##
=========================================
- Coverage      99%     37%     -62%     
=========================================
  Files          15     349     +334     
  Lines         195   19938   +19743     
=========================================
+ Hits          194    7376    +7182     
- Misses          1   12562   +12561     

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[Borda]

seems it is not compatible with python 3.9