fix(ui): avoid duplicate RUN in build history

[Tusharjamdade]

Thank you for contributing to Harbor!

Comprehensive Summary of your change

Fixes duplicated RUN instructions shown in the build history UI for images built with BuildKit.
Adds a guard to avoid rewriting /bin/sh -c when the command is already prefixed with RUN.

Issue being fixed

Fixes #22664

Please indicate you've done the following:

• Well Written Title and Summary of the PR
• Label the PR as needed. "release-note/ignore-for-release, release-note/new-feature, release-note/update, release-note/enhancement, release-note/community, release-note/breaking-change, release-note/docs, release-note/infra, release-note/deprecation"
• Accepted the DCO. Commits without the DCO will delay acceptance.
• Made sure tests are passing and test coverage is added if needed.
• Considered the docs impact and opened a new docs issue or PR with docs changes if needed in website repository.

[AllForNothing]

lgtm

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 46.58%. Comparing base (c8c11b4) to head (6afbd72).
⚠️ Report is 613 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #22685      +/-   ##
==========================================
+ Coverage   45.36%   46.58%   +1.21%     
==========================================
  Files         244      252       +8     
  Lines       13333    14276     +943     
  Branches     2719     2932     +213     
==========================================
+ Hits         6049     6650     +601     
- Misses       6983     7268     +285     
- Partials      301      358      +57     

Flag	Coverage Δ
unittests	46.58% <100.00%> (+1.21%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...additions/build-history/build-history.component.ts	86.95% <100.00%> (+1.95%)	⬆️

... and 177 files with indirect coverage changes

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[chlins]

@Tusharjamdade Please fix the CI.

[stonezdj]

Please fix the lint error in the UI code.

[Tusharjamdade]

Hi @stonezdj, I’ve updated the code. Please take a look.