Update dependency jest to v25.2.3

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
jest (source)	devDependencies	patch	25.2.2 -> 25.2.3

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Release Notes

facebook/jest

### [`v25.2.3`](https://togithub.com/facebook/jest/blob/master/CHANGELOG.md#​2523) [Compare Source](https://togithub.com/facebook/jest/compare/v25.2.2...v25.2.3) ##### Fixes - `[*]` Verify all packages are properly downleveled for older versions of TypeScript ([#​9715](https://togithub.com/facebook/jest/pull/9715))

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[codecov[bot]]

Codecov Report

Merging #56 into master will not change coverage by %. The diff coverage is n/a.

@@            Coverage Diff            @@
##            master       #56   +/-   ##
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  Coverage   100.00%   100.00%           
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  Files            5         5           
  Lines           41        41           
  Branches         3         3           
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  Hits            41        41