chore(deps): update dependency webpack-merge to v6

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
webpack-merge	^5.10.0 → ^6.0.0

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Release Notes

survivejs/webpack-merge (webpack-merge)

v6.0.1

Compare Source

• Fix - Restore usage of clone-deep as there was a corner case where structuredClone did not work as expected. #​214

v6.0.0

Compare Source

• Chore - Update internal dependencies. As a result, the package needs at least Node 18 to run.
• Chore - Use structuredClone over clone-deep dependency since it is included to Node 18 or above. #​214

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Configuration

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.48%. Comparing base (f15aa7e) to head (f2d29ed).
⚠️ Report is 15 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6364   +/-   ##
=======================================
  Coverage   95.48%   95.48%           
=======================================
  Files         363      363           
  Lines       11564    11564           
  Branches     2669     2669           
=======================================
  Hits        11042    11042           
  Misses        522      522           

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