refactor(yaml): cleanup stringifyFlowSequence()

[timreichen]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 83.33333% with 1 line in your changes missing coverage. Please review.

Project coverage is 96.22%. Comparing base (833a24f) to head (cfc8329).
Report is 4 commits behind head on main.

Files	Patch %	Lines
yaml/_dumper_state.ts	83.33%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5744      +/-   ##
==========================================
- Coverage   96.23%   96.22%   -0.01%     
==========================================
  Files         481      481              
  Lines       38752    38751       -1     
  Branches     5618     5618              
==========================================
- Hits        37292    37290       -2     
- Misses       1418     1420       +2     
+ Partials       42       41       -1     

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[iuioiua]

Thanks