enhance(SDK): avoid obtaining all artifact content in advance

[tianweidut]

Description

• For cifar10 example(spend 90s to finish evaluate phase):
  

Modules

• Python-SDK

Checklist

• run code format and lint check
• add unit test
• add necessary doc

[codecov]

Codecov Report

Merging #2882 (87fdebf) into main (149c8aa) will increase coverage by 0.05%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #2882      +/-   ##
==========================================
+ Coverage   92.35%   92.41%   +0.05%     
==========================================
  Files         125      122       -3     
  Lines       15351    15172     -179     
  Branches       44        0      -44     
==========================================
- Hits        14178    14021     -157     
+ Misses       1173     1151      -22     

Flag	Coverage Δ
console	?
standalone	92.41% <100.00%> (-0.06%)	⬇️
unittests	92.41% <100.00%> (+0.05%)	⬆️

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

Files	Coverage Δ
client/starwhale/api/_impl/evaluation/log.py	100.00% <100.00%> (ø)
client/starwhale/base/data_type.py	95.92% <100.00%> (ø)

... and 5 files with indirect coverage changes

[goldenxinxing]

LGTM