fix snapshot node attribute: resolution -> voxel_size

[yajivunev]

Pre-Merge Checklist:

• if this PR adds a feature: request merge into the latest development branch (vX.Y-dev)
• if this PR fixes a bug: request merge into the latest patch branch (patch-X.Y.Z)
• PR branch name is short and describes the feature/bug addressed in this PR
• commit messages are consistent
• changes reviewed by another contributor
• tests cover changes
• all tests pass

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 68.73%. Comparing base (ecbb63c) to head (0e5aa79).
Report is 96 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #215      +/-   ##
==========================================
+ Coverage   67.38%   68.73%   +1.35%     
==========================================
  Files          98      100       +2     
  Lines        6813     6935     +122     
==========================================
+ Hits         4591     4767     +176     
+ Misses       2222     2168      -54     

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[github-actions]

This PR will be closed in one week due to inactivity. Please update the PR if necessary.

[github-actions]

This PR will be closed in one week due to inactivity. Please update the PR if necessary.