chore(package): update react-scripts to version 2.1.5

[NateRadebaugh]

Description

Motivation and Context

Checklist

[ ] I have not included any built dist files (us maintainers do that prior to a new release)
[ ] I have added tests covering my changes
[ ] All new and existing tests pass
[ ] My changes required the documentation to be updated
  [ ] I have updated the documentation accordingly
  [ ] I have updated the TypeScript type definitions accordingly

[vercel]

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[codecov]

Codecov Report

Merging #114 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff          @@
##           master   #114   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files          12     12           
  Lines         498    498           
  Branches      120    120           
=====================================
  Hits          498    498

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[coveralls]

Pull Request Test Coverage Report for Build 576

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 100.0%

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Totals
Change from base Build 565:	0.0%
Covered Lines:	449
Relevant Lines:	449

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💛 - Coveralls