Add Javadoc of ErrorTypeAwareLogger.

[win120a]

What is the purpose of the change

Brief changelog

Verifying this change

Checklist

• Make sure there is a GitHub_issue field for the change (usually before you start working on it). Trivial changes like typos do not require a GitHub issue. Your pull request should address just this issue, without pulling in other changes - one PR resolves one issue.
• Each commit in the pull request should have a meaningful subject line and body.
• Write a pull request description that is detailed enough to understand what the pull request does, how, and why.
• Check if is necessary to patch to Dubbo 3 if you are work on Dubbo 2.7
• Write necessary unit-test to verify your logic correction, more mock a little better when cross module dependency exist. If the new feature or significant change is committed, please remember to add sample in dubbo samples project.
• Add some description to dubbo-website project if you are requesting to add a feature.
• GitHub Actions works fine on your own branch.
• If this contribution is large, please follow the Software Donation Guide.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[codecov-commenter]

Codecov Report

Merging #13032 (8a6c569) into 3.2 (af56623) will decrease coverage by 0.36%.
Report is 11 commits behind head on 3.2.
The diff coverage is n/a.

@@             Coverage Diff              @@
##                3.2   #13032      +/-   ##
============================================
- Coverage     69.80%   69.45%   -0.36%     
+ Complexity      341        2     -339     
============================================
  Files          3527     1650    -1877     
  Lines        167855    68537   -99318     
  Branches      28071     9999   -18072     
============================================
- Hits         117174    47601   -69573     
+ Misses        40560    16347   -24213     
+ Partials      10121     4589    -5532     

see 1905 files with indirect coverage changes

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