[cherry-pick] Check create when fire the artifact event

[stonezdj]

fixes #20828

Thank you for contributing to Harbor!

Comprehensive Summary of your change

Issue being fixed

Fixes #(issue)

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 ✅

Please upload report for BASE (release-2.11.0@ff3e16a). Learn more about missing BASE report.

Additional details and impacted files

@@                Coverage Diff                @@
##             release-2.11.0   #20838   +/-   ##
=================================================
  Coverage                  ?   66.31%           
=================================================
  Files                     ?     1044           
  Lines                     ?   113927           
  Branches                  ?     2845           
=================================================
  Hits                      ?    75546           
  Misses                    ?    34262           
  Partials                  ?     4119           

Flag	Coverage Δ
unittests	66.31% <100.00%> (?)

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

Files	Coverage Δ
src/controller/artifact/controller.go	62.30% <100.00%> (ø)

[wy65701436]

lgtm