feat: Update osv-scanner to use osv-scalibr osvecosystem

[another-rex]

OSV-Scalibr added the osvecosystem.Parsed type into their library and is now properly returned from all the relevant functions. use that and delete the existing ecosystem.Parsed.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 52.17391% with 11 lines in your changes missing coverage. Please review.
✅ Project coverage is 67.52%. Comparing base (18100e2) to head (d3c99e8).
⚠️ Report is 7 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/imodels/imodels.go	42.85%	6 Missing and 2 partials ⚠️
cmd/osv-scanner/fix/command.go	0.00%	1 Missing ⚠️
...al/clients/clientimpl/localmatcher/localmatcher.go	50.00%	1 Missing ⚠️
pkg/osvscanner/filter.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2211      +/-   ##
==========================================
- Coverage   67.62%   67.52%   -0.10%     
==========================================
  Files         170      169       -1     
  Lines       16336    16283      -53     
==========================================
- Hits        11047    10995      -52     
  Misses       4609     4609              
+ Partials      680      679       -1     

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