Bump Makie compat to 0.21

[vladdez]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.54%. Comparing base (db4c6b0) to head (aa99975).
Report is 3 commits behind head on master.

❗ Current head aa99975 differs from pull request most recent head 780f124

Please upload reports for the commit 780f124 to get more accurate results.

Additional details and impacted files

@@           Coverage Diff           @@
##           master      #50   +/-   ##
=======================================
  Coverage   85.54%   85.54%           
=======================================
  Files           5        5           
  Lines         166      166           
=======================================
  Hits          142      142           
  Misses         24       24           

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[palday]

can you also patch-bump the package version so that we can immediately tag review?