refactor credentials providers && add provider name

[yndu13]

You need to complete

• unit tests and/or feature tests
• documentation is changed or added

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 85.35980% with 59 lines in your changes missing coverage. Please review.

Project coverage is 91.43%. Comparing base (3d71454) to head (b940604).

Files with missing lines	Patch %	Lines
...ntials/provider/OIDCRoleArnCredentialProvider.java	71.73%	6 Missing and 7 partials ⚠️
...ntials/provider/CLIProfileCredentialsProvider.java	92.30%	2 Missing and 8 partials ⚠️
...edentials/provider/ProfileCredentialsProvider.java	77.77%	8 Missing ⚠️
...n/java/com/aliyun/credentials/utils/AuthUtils.java	75.00%	4 Missing and 2 partials ⚠️
...provider/ECSMetadataServiceCredentialsFetcher.java	72.22%	1 Missing and 4 partials ⚠️
...entials/provider/EcsRamRoleCredentialProvider.java	70.58%	4 Missing and 1 partial ⚠️
...entials/provider/RsaKeyPairCredentialProvider.java	84.37%	1 Missing and 4 partials ⚠️
...entials/provider/RamRoleArnCredentialProvider.java	91.48%	1 Missing and 3 partials ⚠️
...edentials/provider/DefaultCredentialsProvider.java	87.50%	0 Missing and 3 partials ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master      #94      +/-   ##
============================================
+ Coverage     91.37%   91.43%   +0.06%     
- Complexity      613      714     +101     
============================================
  Files            45       46       +1     
  Lines          2202     2359     +157     
  Branches        169      213      +44     
============================================
+ Hits           2012     2157     +145     
  Misses          128      128              
- Partials         62       74      +12     

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