fix: Check string array max length after type matching

[xiaocai2333]

issue: #36029

[mergify]

@xiaocai2333 E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[mergify]

@xiaocai2333 go-sdk check failed, comment rerun go-sdk can trigger the job again.

[codecov]

Codecov Report

Attention: Patch coverage is 77.77778% with 2 lines in your changes missing coverage. Please review.

Project coverage is 82.33%. Comparing base (ed95568) to head (16bd0c2).
Report is 23 commits behind head on master.

Files with missing lines	Patch %	Lines
internal/proxy/validate_util.go	77.77%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##           master   #36449    +/-   ##
========================================
  Coverage   82.33%   82.33%            
========================================
  Files        1278     1279     +1     
  Lines      150879   151252   +373     
========================================
+ Hits       124219   124532   +313     
- Misses      21667    21711    +44     
- Partials     4993     5009    +16     

Files with missing lines	Coverage Δ
internal/proxy/validate_util.go	90.56% <77.77%> (-0.02%)	⬇️

... and 28 files with indirect coverage changes

[xiaocai2333]

/run-cpu-e2e

[xiaocai2333]

rerun go-sdk

[xiaocai2333]

/run-cpu-e2e

[czs007]

/approve
/lgtm

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: czs007, xiaocai2333

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