Log warning message when current user is freeze

[stonezdj]

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 #18937 (ed6f0ec) into main (d745ad9) will decrease coverage by 3.16%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main   #18937      +/-   ##
==========================================
- Coverage   70.57%   67.41%   -3.16%     
==========================================
  Files         750      986     +236     
  Lines       94817   107995   +13178     
  Branches        0     2698    +2698     
==========================================
+ Hits        66914    72805    +5891     
- Misses      24297    31292    +6995     
- Partials     3606     3898     +292     

Flag	Coverage Δ
unittests	67.41% <0.00%> (-3.16%)	⬇️

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

Impacted Files	Coverage Δ
src/core/auth/authenticator.go	48.81% <0.00%> (ø)

... and 237 files with indirect coverage changes

[chlins]

lgtm

[wy65701436]

lgtm