update gitignore

[itaysk]

Fixed Issues

add pip-wheel-metadata to the .gitignore

Contribution checklist

• [x] I have read the Contributing Guidelines.
• [x] The commits refer to an active issue in the repository.
• [x] I have added automated testing to cover this case.

[codecov[bot]]

Codecov Report

Merging #371 into master will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #371   +/-   ##
=======================================
  Coverage   62.77%   62.77%           
=======================================
  Files          42       42           
  Lines        2281     2281           
=======================================
  Hits         1432     1432           
  Misses        849      849           

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[itaysk]

How did you get that file?

I just did make deps and make dev-deps

I saw that this was fixed in pip 20.2.2 which will use a temp dir instead, but I thought it would be better to add it to .getignore anyway

[evrardjp]

Yes indeed, I am not against that :)

I just thought it was worth a message in the commit message to explain the full context.