panichandler: process panic handlers in the same go routine

[harjotgill]

Description of change

Sentry runs it's own stack capture therefore it's better to run the handler in the same go routine that panic'ed. Otherwise Sentry is unable to distinguish crashes from one another.

Checklist

• Tested in playground or other setup

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This change is 

[codecov]

Codecov Report

Base: 37.47% // Head: 37.50% // Increases project coverage by +0.03% 🎉

Coverage data is based on head (1cb212e) compared to base (274d547).
Patch coverage: 0.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #875      +/-   ##
==========================================
+ Coverage   37.47%   37.50%   +0.03%     
==========================================
  Files         278      278              
  Lines       20557    20542      -15     
==========================================
+ Hits         7703     7705       +2     
+ Misses      12373    12357      -16     
+ Partials      481      480       -1     

Impacted Files	Coverage Δ
pkg/panichandler/panichandler.go	50.00% <0.00%> (+6.89%)	⬆️
...vice/aperture-plugin-sentry/sentry/sentrywriter.go	0.00% <0.00%> (ø)
...taplane/resources/classifier/extractors/compile.go	78.52% <0.00%> (-0.62%)	⬇️
pkg/jobs/job.go	82.94% <0.00%> (+2.32%)	⬆️

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