flake8 moved from GitLab to Github

[mirekdlugosz]

CI is currently broken because it tries to pull flake8 hook from GitLab - but it has moved to Github a long time ago. Gitlab was kept as outdated mirror for about a year, before disappearing in November last year.

Also, while we are at it, update flake8 to newer version.

[codecov[bot]]

Codecov Report

Merging #381 (a74dae0) into master (5c1e7d6) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #381   +/-   ##
=======================================
  Coverage   79.91%   79.91%           
=======================================
  Files           5        5           
  Lines         229      229           
=======================================
  Hits          183      183           
  Misses         46       46           

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[ruda]

This flake8 change has been already fixed in PR #379. Please, rebase your code with current master.

[mirekdlugosz]

That's embarrassing!

I rebased #392, looks like now it passed.

Sorry!