Fixes-20799 can't remove artifact labels

[xuelichao]

Thank you for contributing to Harbor!

can't remove artifact labels

Issue being fixed

Fixes #20799

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.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 66.29%. Comparing base (c8c11b4) to head (e616ac2).
Report is 250 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main   #20816       +/-   ##
===========================================
+ Coverage   45.36%   66.29%   +20.92%     
===========================================
  Files         244     1045      +801     
  Lines       13333   113988   +100655     
  Branches     2719     2845      +126     
===========================================
+ Hits         6049    75570    +69521     
- Misses       6983    34297    +27314     
- Partials      301     4121     +3820     

Flag	Coverage Δ
unittests	66.29% <ø> (+20.92%)	⬆️

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

see 1287 files with indirect coverage changes

[wy65701436]

lgtm

[chlins]

lgtm

[MinerYang]

Verified and LGTM

Thanks @xuelichao