bump golang 1.20.7 on main

[MinerYang]

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 #19111 (5695180) into main (958bed2) will increase coverage by 22.57%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##             main   #19111       +/-   ##
===========================================
+ Coverage   44.81%   67.39%   +22.57%     
===========================================
  Files         244      992      +748     
  Lines       13412   108791    +95379     
  Branches     2751     2751               
===========================================
+ Hits         6011    73317    +67306     
- Misses       7096    31535    +24439     
- Partials      305     3939     +3634     

Flag	Coverage Δ
unittests	67.39% <ø> (+22.57%)	⬆️

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

see 751 files with indirect coverage changes

[wy65701436]

lgtm