Bugfix: Replace node build image by dotnet/sdk image

[hocinehacherouf]

Description

What's new?

• Replace node build image by dotnet/sdk image to build IoT Hub Portal
• Remove unused build params: -p:ClientAssetsRestoreCommand="npm ci"

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• Tests
• Other

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.87%. Comparing base (244ac48) to head (eea7aa2).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2885   +/-   ##
=======================================
  Coverage   85.87%   85.87%           
=======================================
  Files         296      296           
  Lines       11344    11344           
  Branches      890      890           
=======================================
  Hits         9742     9742           
  Misses       1311     1311           
  Partials      291      291           

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