refactor: solve the inconsistency of credentials refresh

[yndu13]

No description provided.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 82.88770% with 32 lines in your changes missing coverage. Please review.

Project coverage is 79.90%. Comparing base (c009557) to head (f44d223).

Files	Patch %	Lines
alibabacloud_credentials/credentials.py	54.09%	28 Missing ⚠️
alibabacloud_credentials/client.py	87.50%	2 Missing ⚠️
alibabacloud_credentials/models.py	94.73%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #42      +/-   ##
==========================================
+ Coverage   78.90%   79.90%   +1.00%     
==========================================
  Files          17       17              
  Lines        1593     1752     +159     
==========================================
+ Hits         1257     1400     +143     
- Misses        336      352      +16     

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