Bump sparkey version

[spkrka]

Adds support for triggering eager page cache load, mlocking, on-heap loading (instead of purely off-heap) and a new builder (to manage all the new features)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 61.53%. Comparing base (d59fbba) to head (66ad4fd).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5902      +/-   ##
==========================================
- Coverage   61.54%   61.53%   -0.01%     
==========================================
  Files         317      317              
  Lines       11653    11653              
  Branches      822      822              
==========================================
- Hits         7172     7171       -1     
- Misses       4481     4482       +1     

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