Update jest monorepo

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@types/jest (source)	22.2.0 -> 22.2.3
jest (source)	22.4.2 -> 22.4.4
jest-cli (source)	22.4.2 -> 22.4.4
pretty-format	22.4.0 -> 22.4.3

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[codecov-io]

Codecov Report

Merging #112 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #112   +/-   ##
=======================================
  Coverage   68.75%   68.75%           
=======================================
  Files          11       11           
  Lines         240      240           
  Branches       40       40           
=======================================
  Hits          165      165           
  Misses         69       69           
  Partials        6        6

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[renovate]

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