Skip some tests automatically in Github actions

[egoriyaa]

Before submitting (must do checklist)

• Did you read the contribution guide?
• Did you update the docs? We use Numpy format for all the methods and classes.
• Did you write any new necessary tests?
• Did you update the CHANGELOG?

Proposed Changes

Closing issues

closes #551

[github-actions]

🚀 Deployed on https://deploy-preview-558--etna-docs.netlify.app

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.42%. Comparing base (af81857) to head (9aa555a).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #558   +/-   ##
=======================================
  Coverage   90.42%   90.42%           
=======================================
  Files         262      262           
  Lines       18265    18265           
=======================================
+ Hits        16516    16517    +1     
+ Misses       1749     1748    -1     

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