fix: handle failure to convert u64 to usize

[joseph-sentry]

we can handle this (unlikely) failure gracefully and just not show the line number or col in the context we pass back

[codecov]

Codecov Report

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

Project coverage is 96.90%. Comparing base (45a671a) to head (81693b7).
Report is 2 commits behind head on main.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
src/raw_upload.rs	88.88%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #78      +/-   ##
==========================================
- Coverage   96.95%   96.90%   -0.05%     
==========================================
  Files          15       15              
  Lines        1902     1905       +3     
==========================================
+ Hits         1844     1846       +2     
- Misses         58       59       +1     

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[codecov-notifications]

Codecov Report

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

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
src/raw_upload.rs	88.88%	1 Missing ⚠️

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[codspeed-hq]

CodSpeed Performance Report

Merging #78 will not alter performance

_{Comparing joseph/with-context (81693b7) with main (45a671a)}

Summary

✅ 6 untouched benchmarks