Feat: add new ood datasets

[anyangml]

This PR updates the OOD dataset used in force field generalizability tests.

[codecov]

Codecov Report

❌ Patch coverage is 61.53846% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 65.25%. Comparing base (ab928d9) to head (7b4ec88).
⚠️ Report is 6 commits behind head on main.

Files with missing lines	Patch %	Lines
lambench/metrics/vishelper/results_fetcher.py	55.55%	3 Missing and 1 partial ⚠️
lambench/workflow/entrypoint.py	0.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #378      +/-   ##
==========================================
+ Coverage   65.14%   65.25%   +0.10%     
==========================================
  Files          35       35              
  Lines        1624     1632       +8     
  Branches      198      200       +2     
==========================================
+ Hits         1058     1065       +7     
- Misses        522      523       +1     
  Partials       44       44              

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