refactor(yaml): remove throwError() method

[timreichen]

This PR removes the throwError() and throws errors directly. This makes the code easier to read.

[codecov]

Codecov Report

Attention: Patch coverage is 59.18367% with 20 lines in your changes missing coverage. Please review.

Project coverage is 94.58%. Comparing base (3a021b2) to head (9145f7a).
Report is 7 commits behind head on main.

Files with missing lines	Patch %	Lines
yaml/_loader_state.ts	59.18%	20 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6593      +/-   ##
==========================================
- Coverage   94.58%   94.58%   -0.01%     
==========================================
  Files         579      579              
  Lines       43752    43749       -3     
  Branches     6494     6494              
==========================================
- Hits        41381    41378       -3     
  Misses       2331     2331              
  Partials       40       40              

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[kt3k]

This makes the code easier to read.

Agree.

LGTM