Fix library qualified name on windows

[timkpaine]

No description provided.

[github-actions]

Test Results

5 tests  ±0   5 ✅ ±0   7s ⏱️ -4s
1 suites ±0   0 💤 ±0 
1 files   ±0   0 ❌ ±0 

Results for commit 7ab9862. ± Comparison against base commit 27d4793.

[codecov]

Codecov Report

Attention: Patch coverage is 88.88889% with 1 line in your changes missing coverage. Please review.

Project coverage is 95.71%. Comparing base (27d4793) to head (7ab9862).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
hatch_cpp/structs.py	85.71%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #19      +/-   ##
==========================================
- Coverage   96.03%   95.71%   -0.32%     
==========================================
  Files           7        7              
  Lines         252      257       +5     
==========================================
+ Hits          242      246       +4     
- Misses         10       11       +1     

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