fix!: error codes

[moritzraho]

Description

This may be considered a breaking change, as we are changing error codes.

• avoid wrapping the error message returned by the server
• differentiate unknown 4xx and 5xx
• 403 => 401

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have signed the Adobe Open Source CLA.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (d974951) to head (ea22827).

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #224   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            6         6           
  Lines          277       279    +2     
  Branches        49        50    +1     
=========================================
+ Hits           277       279    +2     

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