Fixed bug with validate_split in yolov8 parser

[klemen1999]

Purpose

• Fixes bug where YOLOv8 parser validate_split() function didn't have the correct signature
• Fixes issue which caused macOS zips to not be parsed because of extra MACOSX folder

Specification

None / not applicable

Dependencies & Potential Impact

None / not applicable

Deployment Plan

None / not applicable

Testing & Validation

None / not applicable

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.31%. Comparing base (571af92) to head (a2153c4).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #368      +/-   ##
==========================================
+ Coverage   95.30%   95.31%   +0.01%     
==========================================
  Files         105      105              
  Lines        6540     6535       -5     
==========================================
- Hits         6233     6229       -4     
+ Misses        307      306       -1     

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