fix(jit): out of index when dump mismatched error

[liuq19]

Fixed #716

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 6.66667% with 14 lines in your changes missing coverage. Please review.

Project coverage is 53.14%. Comparing base (9e5bbc5) to head (84142fe).
Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/decoder/jitdec/assembler_regabi_amd64.go	8.33%	9 Missing and 2 partials ⚠️
internal/decoder/jitdec/primitives.go	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #717      +/-   ##
==========================================
+ Coverage   51.85%   53.14%   +1.29%     
==========================================
  Files         130      147      +17     
  Lines       11020    11730     +710     
==========================================
+ Hits         5714     6234     +520     
- Misses       4971     5138     +167     
- Partials      335      358      +23     

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