Fix panicparse for Go 1.23

[stapelberg]

These changes make panicparse work with Go 1.23.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.5%. Comparing base (496cdd2) to head (aa2551a).
Report is 5 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##            main     #92     +/-   ##
=======================================
- Coverage   83.4%   78.5%   -4.9%     
=======================================
  Files         12      23     +11     
  Lines       2768    3070    +302     
=======================================
+ Hits        2308    2409    +101     
- Misses       399     583    +184     
- Partials      61      78     +17     

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[stapelberg]

Hey @maruel, I got the tests to pass :) Please take a look at this PR when you get a chance. Thank you!

[maruel]

Thanks for taking the time to update the tests!

[stapelberg]

Tests passed, so this should be ready to merge now :) Thanks

[maruel]

Thanks!