enhance: [2.4] Enable hook for importv2

[bigsheeper]

/kind improvement

pr: #39429

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 72.18%. Comparing base (fd3e8d7) to head (0d143f1).
Report is 2 commits behind head on 2.4.

Additional details and impacted files

@@            Coverage Diff             @@
##              2.4   #39431      +/-   ##
==========================================
- Coverage   80.42%   72.18%   -8.24%     
==========================================
  Files        1080     1080              
  Lines      169977   169977              
==========================================
- Hits       136696   122706   -13990     
- Misses      28780    42755   +13975     
- Partials     4501     4516      +15     

Files with missing lines	Coverage Δ
...nternal/distributed/proxy/httpserver/handler_v2.go	91.82% <100.00%> (ø)

... and 228 files with indirect coverage changes