Fix typo in config init

[pkuczynski]

Summary

Fix small typo in jest config initialization comment

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[codecov-io]

Codecov Report

Merging #7905 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #7905   +/-   ##
=======================================
  Coverage   57.98%   57.98%           
=======================================
  Files         171      171           
  Lines        6422     6422           
  Branches        5        5           
=======================================
  Hits         3724     3724           
  Misses       2696     2696           
  Partials        2        2

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[SimenB]

Thank you!

[github-actions]

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