Allow puppet-lint 3; rake 13; drop rubocop

[bastelfreak]

No description provided.

[codecov]

Codecov Report

Base: 100.00% // Head: 100.00% // No change to project coverage 👍

Coverage data is based on head (30b2be3) compared to base (28f233c).
Patch has no changes to coverable lines.

❗ Current head 30b2be3 differs from pull request most recent head e00bb62. Consider uploading reports for the commit e00bb62 to get more accurate results

Additional details and impacted files

@@            Coverage Diff            @@
##            master       #20   +/-   ##
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  Coverage   100.00%   100.00%           
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  Files            1         1           
  Lines           10        10           
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  Hits            10        10           

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[alexjfisher]

@bastelfreak How come?

[bastelfreak]

because we didn't actually run rubocop and the config is totally outdated. and the version 0.58 brings conflicts with newer ruby versions. We're currently discussing how to handle rubocop for puppet-lint + our plugins and want to unify that, after the next puppet-lint release.