test: Verify the mapping between exported provider and metadata

[pinxiong]

What is the purpose of the change

Add testcases for checking the mapping between exported provider and metadata

Brief changelog

1. Check if the exported service (provider) is registered
2. Check if registered service (provider)'s name is right
3. Check if registered service (provider)'s version exists

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.

[codecov-commenter]

Codecov Report

Merging #8510 (a929d9b) into 3.0 (7135164) will increase coverage by 0.01%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##                3.0    #8510      +/-   ##
============================================
+ Coverage     63.01%   63.02%   +0.01%     
- Complexity      312      313       +1     
============================================
  Files          1117     1117              
  Lines         46789    46789              
  Branches       7047     7047              
============================================
+ Hits          29482    29490       +8     
+ Misses        14026    14022       -4     
+ Partials       3281     3277       -4     

Impacted Files	Coverage Δ
...va/org/apache/dubbo/registry/RegistryNotifier.java	82.85% <0.00%> (ø)
...pache/dubbo/remoting/transport/AbstractServer.java	62.85% <0.00%> (+1.42%)	⬆️
...e/dubbo/remoting/transport/netty/NettyChannel.java	60.22% <0.00%> (+4.54%)	⬆️
.../apache/dubbo/remoting/transport/AbstractPeer.java	69.56% <0.00%> (+6.52%)	⬆️

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