CompatHelper: bump compat for Bijectors to 0.15, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the Bijectors package from 0.14 to 0.14, 0.15.
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 52.68%. Comparing base (cec970d) to head (1e1c571).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master      #99   +/-   ##
=======================================
  Coverage   52.68%   52.68%           
=======================================
  Files          22       22           
  Lines        1080     1080           
=======================================
  Hits          569      569           
  Misses        511      511           

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