Fix parsing of tab character

[goccy]

fix #267

allow: a:[tab]b => map[string]any{"a": "b"}

deny:

a:
[tab]b: c
[tab]d: e

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.23%. Comparing base (cab4364) to head (58941ed).

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Additional details and impacted files

@@            Coverage Diff             @@
##           master     #530      +/-   ##
==========================================
+ Coverage   79.14%   79.23%   +0.08%     
==========================================
  Files          17       17              
  Lines        6191     6216      +25     
==========================================
+ Hits         4900     4925      +25     
  Misses        977      977              
  Partials      314      314