chore: add execute permission for charts-build.sh

[lybcodes]

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[ti-chi-bot]

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[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: csuzhangxc

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2026-01-28 06:28:46.23436069 +0000 UTC m=+1166553.848317545: ☑️ agreed by csuzhangxc.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
⚠️ Please upload report for BASE (release-1.x@59ae492). Learn more about missing BASE report.

Additional details and impacted files

@@              Coverage Diff               @@
##             release-1.x    #6688   +/-   ##
==============================================
  Coverage               ?   57.54%           
==============================================
  Files                  ?      264           
  Lines                  ?    38366           
  Branches               ?        0           
==============================================
  Hits                   ?    22076           
  Misses                 ?    14213           
  Partials               ?     2077           

Flag	Coverage Δ
unittest	57.54% <ø> (?)

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