[SCB-2381] support upload to default directory

[david6969xin]

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[codecov-commenter]

Codecov Report

❌ Patch coverage is 81.81818% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 77.23%. Comparing base (79db194) to head (0bb140a).
⚠️ Report is 1591 commits behind head on master.

Files with missing lines	Patch %	Lines
...rvicecomb/transport/rest/servlet/ServletUtils.java	75.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #2709   +/-   ##
=========================================
  Coverage     77.22%   77.23%           
- Complexity     1412     1413    +1     
=========================================
  Files          1608     1608           
  Lines         42976    42974    -2     
  Branches       3643     3641    -2     
=========================================
  Hits          33190    33190           
+ Misses         8263     8259    -4     
- Partials       1523     1525    +2     

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[liubao68]

delete this line

[david6969xin]

done

[david6969xin]

retrigger cl

[liubao68]

retrigger ci