Bump up version to v2.8.2

[YangJiao0817]

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 #18768 (c85068a) into release-2.8.0 (d130e7b) will increase coverage by 0.00%.
The diff coverage is n/a.

@@              Coverage Diff               @@
##           release-2.8.0   #18768   +/-   ##
==============================================
  Coverage          67.36%   67.37%           
==============================================
  Files                984      984           
  Lines             107026   107026           
  Branches            2670     2670           
==============================================
+ Hits               72101    72105    +4     
+ Misses             31044    31035    -9     
- Partials            3881     3886    +5     

Flag	Coverage Δ
unittests	67.37% <ø> (+<0.01%)	⬆️

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see 11 files with indirect coverage changes

[chlins]

lgtm

[MinerYang]

lgtm