test: Add testcase to check exported service in multiple registry center

[pinxiong]

What is the purpose of the change

Add testcase to check exported service in multiple registry center

Brief changelog

1. Add testcases
2. Update the tickTime to increase the timeout in dubbo-config-spring module

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 #8598 (d020f28) into 3.0 (6689f4e) will increase coverage by 0.05%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##                3.0    #8598      +/-   ##
============================================
+ Coverage     62.95%   63.01%   +0.05%     
- Complexity      310      313       +3     
============================================
  Files          1117     1117              
  Lines         46788    46788              
  Branches       7047     7047              
============================================
+ Hits          29457    29482      +25     
+ Misses        14038    14016      -22     
+ Partials       3293     3290       -3     

Impacted Files	Coverage Δ
...keeper/ZookeeperServiceDiscoveryChangeWatcher.java	88.88% <0.00%> (-3.71%)	⬇️
...etadata/store/InMemoryWritableMetadataService.java	80.92% <0.00%> (-2.64%)	⬇️
...bo/remoting/zookeeper/AbstractZookeeperClient.java	81.60% <0.00%> (-2.30%)	⬇️
...stry/client/ServiceDiscoveryRegistryDirectory.java	46.41% <0.00%> (-0.96%)	⬇️
...vent/listener/ServiceInstancesChangedListener.java	77.72% <0.00%> (-0.50%)	⬇️
...apache/dubbo/common/extension/ExtensionLoader.java	79.20% <0.00%> (+0.20%)	⬆️
.../dubbo/registry/integration/RegistryDirectory.java	47.17% <0.00%> (+0.66%)	⬆️
...etadata/report/support/AbstractMetadataReport.java	61.72% <0.00%> (+0.95%)	⬆️
.../exchange/support/header/HeaderExchangeServer.java	68.86% <0.00%> (+1.88%)	⬆️
...pache/dubbo/registry/support/AbstractRegistry.java	79.92% <0.00%> (+3.28%)	⬆️
... and 5 more

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