chore(deps): update dependency @edx/frontend-platform to v8.3.9

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@edx/frontend-platform	8.3.8 -> 8.3.9

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Release Notes

openedx/frontend-platform (@​edx/frontend-platform)

v8.3.9

Compare Source

Bug Fixes

• treat @​openedx/frontend-build as an optional peerDep to avoid direct dep in consuming MFEs (#​790) (79d211a)

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Configuration

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.04%. Comparing base (db201af) to head (383224e).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #538   +/-   ##
=======================================
  Coverage   94.04%   94.04%           
=======================================
  Files          14       14           
  Lines          84       84           
  Branches       18       18           
=======================================
  Hits           79       79           
  Misses          5        5           

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