refactor json array decode

[ZhouBox]

No description provided.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 82.75862% with 10 lines in your changes missing coverage. Please review.
✅ Project coverage is 65.15%. Comparing base (db1c5ad) to head (26ee06e).
⚠️ Report is 8 commits behind head on main.

Files with missing lines	Patch %	Lines
src/utils/json.c	82.75%	10 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #2853       +/-   ##
===========================================
+ Coverage   41.66%   65.15%   +23.49%     
===========================================
  Files         126      132        +6     
  Lines       30444    32209     +1765     
===========================================
+ Hits        12684    20986     +8302     
+ Misses      17760    11223     -6537     

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