bump Flutter/Dart SDK with upgrading deps

[sensuikan1973]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 91.58879% with 9 lines in your changes missing coverage. Please review.

Project coverage is 94.03%. Comparing base (cb31bd5) to head (b3efe7b).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
lib/engine/edax_server.dart	86.20%	8 Missing ⚠️
lib/home/home.dart	96.55%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2602      +/-   ##
==========================================
+ Coverage   94.02%   94.03%   +0.01%     
==========================================
  Files          52       52              
  Lines        1473     1476       +3     
==========================================
+ Hits         1385     1388       +3     
  Misses         88       88              

Flag	Coverage Δ
integration_test	65.44% <68.22%> (+0.13%)	⬆️
macos-latest	93.08% <91.58%> (+0.01%)	⬆️
ubuntu	93.49% <91.58%> (+0.01%)	⬆️
widget_test	90.38% <90.56%> (+0.02%)	⬆️
windows	93.49% <91.58%> (+0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
lib/board/pedax_board.dart	98.33% <100.00%> (+0.01%)	⬆️
lib/board/square.dart	100.00% <100.00%> (ø)
lib/main.dart	96.77% <100.00%> (ø)
lib/home/home.dart	96.87% <96.55%> (-0.02%)	⬇️
lib/engine/edax_server.dart	84.78% <86.20%> (+0.16%)	⬆️

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