fix: beforeUpload调用后获取action & data值(#29563)

[inottn]

fix #29563

[vercel]

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[codecov]

Codecov Report

Merging #300 (088818c) into master (cac326e) will increase coverage by 0.08%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #300      +/-   ##
==========================================
+ Coverage   81.11%   81.19%   +0.08%     
==========================================
  Files           6        6              
  Lines         233      234       +1     
  Branches       57       57              
==========================================
+ Hits          189      190       +1     
  Misses         44       44              

Impacted Files	Coverage Δ
src/AjaxUploader.tsx	80.48% <100.00%> (+0.15%)	⬆️

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