Bump rc-util from 5.0.5 to 5.7.0

[verymuch]

PR for #389

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[codecov]

Codecov Report

Merging #390 (6df2585) into master (8ec1d90) will not change coverage.
The diff coverage is n/a.

❗ Current head 6df2585 differs from pull request most recent head 8122dfe. Consider uploading reports for the commit 8122dfe to get more accurate results

@@            Coverage Diff            @@
##            master      #390   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           12        12           
  Lines          548       548           
  Branches       163       163           
=========================================
  Hits           548       548           

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