chore: Add support for ESM in jest

[gethinwebster]

Issue #, if available: AWSUI-51276

Description of changes: Some preparatory work for upgrading webdriverio: support ESM in jest as-per https://jestjs.io/docs/ecmascript-modules

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.13%. Comparing base (d7a5c3c) to head (605fe77).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #90   +/-   ##
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  Coverage   99.13%   99.13%           
=======================================
  Files          26       26           
  Lines         579      579           
  Branches      135      138    +3     
=======================================
  Hits          574      574           
  Misses          5        5           

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