CompatHelper: bump compat for GPUToolbox to 0.2, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the GPUToolbox package from 0.1 to 0.1, 0.2.
This keeps the compat entries for earlier versions.

Note: I have not tested your package with this new compat entry.
It is your responsibility to make sure that your package tests pass before you merge this pull request.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.86%. Comparing base (5971392) to head (4473606).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #495   +/-   ##
=======================================
  Coverage   81.86%   81.86%           
=======================================
  Files          44       44           
  Lines        2531     2531           
=======================================
  Hits         2072     2072           
  Misses        459      459           

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