CompatHelper: bump compat for "ColorTypes" to "0.12"

[github-actions]

This pull request changes the compat entry for the ColorTypes package from 0.9, 0.10, 0.11 to 0.9, 0.10, 0.11, 0.12.

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 92.87%. Comparing base (60b3121) to head (51e32ce).
Report is 19 commits behind head on dev.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev     #196      +/-   ##
==========================================
- Coverage   93.50%   92.87%   -0.63%     
==========================================
  Files           6        6              
  Lines         431      435       +4     
==========================================
+ Hits          403      404       +1     
- Misses         28       31       +3     

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