Copy swagger.json to the dist folder

[AllForNothing]

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

Merging #18646 (72ce4e0) into main (0e3e70b) will decrease coverage by 22.63%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##             main   #18646       +/-   ##
===========================================
- Coverage   67.37%   44.74%   -22.63%     
===========================================
  Files         984      235      -749     
  Lines      107029    13089    -93940     
  Branches     2670     2670               
===========================================
- Hits        72112     5857    -66255     
+ Misses      31035     6939    -24096     
+ Partials     3882      293     -3589     

Flag	Coverage Δ
unittests	44.74% <ø> (-22.63%)	⬇️

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see 752 files with indirect coverage changes