chore(controller): add unit test for StorageAccessServiceS3

[xuchuan]

Description

Modules

• UI
• Controller
• Agent
• Client
• Python-SDK
• Others

Checklist

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

[codecov]

Codecov Report

Merging #1155 (53ede14) into main (95f381f) will decrease coverage by 11.06%.
The diff coverage is n/a.

@@              Coverage Diff              @@
##               main    #1155       +/-   ##
=============================================
- Coverage     74.90%   63.84%   -11.07%     
- Complexity      828      847       +19     
=============================================
  Files           205      142       -63     
  Lines         10780     3872     -6908     
  Branches        419      419               
=============================================
- Hits           8075     2472     -5603     
+ Misses         2561     1252     -1309     
- Partials        144      148        +4     

Flag	Coverage Δ
controller	63.84% <ø> (+1.29%)	⬆️
standalone	?
unittests	?

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

Impacted Files	Coverage Δ
client/starwhale/core/runtime/model.py
client/starwhale/api/_impl/dataset/mnist.py
client/starwhale/core/dataset/type.py
client/starwhale/api/_impl/metric.py
client/starwhale/core/project/view.py
client/starwhale/api/_impl/job.py
client/starwhale/core/eval/executor.py
client/starwhale/mngt/__init__.py
client/starwhale/utils/venv_pack.py
client/starwhale/utils/flatten.py
... and 56 more

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[goldenxinxing]

LGTM