upgrade nodejs version

[sensuikan1973]

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[gemini-code-assist]

Code Review

This pull request updates the Node.js version from 24.4.0 to 24.4.1 in the .node-version file. This is a standard patch version bump, which typically includes bug fixes and is a good practice for maintaining project dependencies. The change is straightforward and I see no issues with it.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.97%. Comparing base (8549a91) to head (6561e6c).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2678   +/-   ##
=======================================
  Coverage   93.97%   93.97%           
=======================================
  Files          52       52           
  Lines        1477     1477           
=======================================
  Hits         1388     1388           
  Misses         89       89           

Flag	Coverage Δ
integration_test	65.40% <ø> (ø)
macos-latest	93.02% <ø> (ø)
ubuntu	93.43% <ø> (ø)
widget_test	90.31% <ø> (ø)
windows	93.43% <ø> (ø)

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