Polish ObservationConfiguration

[ShenFeng312]

What is the purpose of the change

1.Polish ObservationConfiguration 2.Fix slf4JEventListener

Brief changelog

Verifying this change

Checklist

• [x] 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.

[sonarqubecloud[bot]]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
3 Code Smells

0.0% Coverage
52.8% Duplication

[codecov-commenter]

Codecov Report

Merging #11456 (6cf6f57) into 3.2 (75fd3fe) will decrease coverage by 4.80%. The diff coverage is n/a.

@@             Coverage Diff              @@
##                3.2   #11456      +/-   ##
============================================
- Coverage     69.70%   64.91%   -4.80%     
+ Complexity      131       14     -117     
============================================
  Files          1551     1501      -50     
  Lines         83499    62712   -20787     
  Branches      14874     9160    -5714     
============================================
- Hits          58205    40711   -17494     
+ Misses        20400    17768    -2632     
+ Partials       4894     4233     -661     

Impacted Files	Coverage Δ
...luster/router/script/ScriptStateRouterFactory.java	0.00% <0.00%> (-100.00%)	:arrow_down:
...he/dubbo/test/common/impl/GreetingServiceImpl.java	0.00% <0.00%> (-100.00%)	:arrow_down:
...zookeeper/curator/CuratorZookeeperTransporter.java	0.00% <0.00%> (-100.00%)	:arrow_down:
.../serialize/hessian2/Hessian2SerializerFactory.java	0.00% <0.00%> (-100.00%)	:arrow_down:
...nfigure/DubboRelaxedBinding2AutoConfiguration.java	0.00% <0.00%> (-100.00%)	:arrow_down:
.../apache/dubbo/test/spring/SpringXmlConfigTest.java	0.00% <0.00%> (-96.16%)	:arrow_down:
...egistrycenter/context/ZookeeperWindowsContext.java	0.00% <0.00%> (-81.82%)	:arrow_down:
...istrycenter/processor/FindPidWindowsProcessor.java	5.40% <0.00%> (-81.09%)	:arrow_down:
...pc/cluster/router/file/FileStateRouterFactory.java	0.00% <0.00%> (-80.96%)	:arrow_down:
...ycenter/processor/KillProcessWindowsProcessor.java	10.00% <0.00%> (-80.00%)	:arrow_down:
... and 498 more

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