feat: cache v3 index partitions in dataset session

[BubbleCal]

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 75.00000% with 11 lines in your changes missing coverage. Please review.

Project coverage is 78.46%. Comparing base (33ae43b) to head (419e0f7).

Files with missing lines	Patch %	Lines
rust/lance/src/index/vector/ivf/v2.rs	55.00%	8 Missing and 1 partial :warning:
rust/lance/src/index/cache.rs	94.44%	0 Missing and 1 partial :warning:
rust/lance/src/index/vector/builder.rs	83.33%	0 Missing and 1 partial :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3467      +/-   ##
==========================================
- Coverage   78.48%   78.46%   -0.02%     
==========================================
  Files         252      252              
  Lines       94011    94044      +33     
  Branches    94011    94044      +33     
==========================================
+ Hits        73783    73796      +13     
- Misses      17232    17252      +20     
  Partials     2996     2996              

Flag	Coverage Δ
unittests	78.46% <75.00%> (-0.02%)	:arrow_down:

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