compiler: Change buffering callback interface

[FabioLuporini]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 83.93%. Comparing base (93f54b1) to head (408e8b5).

Files with missing lines	Patch %	Lines
devito/passes/clusters/buffering.py	50.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3032      +/-   ##
==========================================
- Coverage   83.94%   83.93%   -0.01%     
==========================================
  Files         258      258              
  Lines       55676    55676              
  Branches     4772     4772              
==========================================
- Hits        46736    46734       -2     
- Misses       8126     8127       +1     
- Partials      814      815       +1     

Flag	Coverage Δ
pytest-gpu-aomp-amdgpuX	68.66% <50.00%> (-0.02%)	⬇️
pytest-gpu-gcc-	78.56% <50.00%> (-0.02%)	⬇️
pytest-gpu-icx-	78.52% <50.00%> (+0.01%)	⬆️
pytest-gpu-nvc-nvidiaX	69.21% <50.00%> (+0.01%)	⬆️

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