ci: disable testing python 3.6 on macos as it is no longer supported

[jyooru]

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Prerequisites

• Have you read the documentation on contributing? https://github.com/bee-san/pyWhat/wiki/Adding-your-own-Regex

Why do we need this pull request?

This repository has automatically switched to macos-11 from macos-10.15 as it has macos-latest specified.

• https://github.com/bee-san/pyWhat/runs/3938576787#step:1:4: macos 11

This means that Python 3.6 is no longer available in GitHub Actions runners:

• macOS-latest workflows will use macOS-11 actions/runner-images#4060 -> Python toolcache:

  Tool name	macOS-10.15	macOS-11	Notes
  Python toolcache	2.7 3.5 3.6 3.7 3.8 3.9	3.7 3.8 3.9	EOL python versions were deprecated

I had this commit on my fork as all actions would fail because of this issue. Looks like GitHub automatically updated my new fork to macos-11 but kept this repo on macos-10.15, but now this repo has been updated to macos-11.

What GitHub issues does this fix?

• Closes CI Checks fail #217

Copy / paste of output

Please copy and paste the output of PyWhat with your new addition using an example that tests this addition below:

[codecov-commenter]

Codecov Report

Merging #237 (539a172) into main (69da611) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #237   +/-   ##
=======================================
  Coverage   92.60%   92.60%           
=======================================
  Files          15       15           
  Lines        1217     1217           
=======================================
  Hits         1127     1127           
  Misses         90       90           

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[amadejpapez]

Updates and support for 3.6 seems to be ending at the end of the year, so that may be the reason. While we are at it could we add 3.10? :)

[jyooru]

While we are at it could we add 3.10?

I added that in #221 😄

[amadejpapez]

I added that in #221 😄

Oh amazing thank you! I was looking at the test file in this PR where there is no 3.10. 😅

[bee-san]

We shall re-evaluate what Python version things use (Ubuntu, Remnux, etc etc) and see if we can up this limit in the new year :)