Update androidGradlePlugin to v9.4.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
com.android.kotlin.multiplatform.library (source)	9.3.0 → 9.4.0
com.android.library (source)	9.3.0 → 9.4.0
com.android.tools.build:gradle (source)	9.3.0 → 9.4.0

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.53%. Comparing base (74a5988) to head (84b2c7e).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #748   +/-   ##
=======================================
  Coverage   83.53%   83.53%           
=======================================
  Files          42       42           
  Lines         899      899           
  Branches      170      170           
=======================================
  Hits          751      751           
  Misses         91       91           
  Partials       57       57           

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