Fix zookeeper instance update

[AlbumenJ]

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Brief changelog

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[chickenlj]

LGTM.

[chickenlj]

The interval between the unregister and register mode before might cause this instance unavailable.

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

0.0% Coverage
0.0% Duplication

[codecov-commenter]

Codecov Report

Merging #11212 (758babe) into 3.1 (98c2f39) will decrease coverage by 5.09%.
The diff coverage is 71.42%.

@@             Coverage Diff              @@
##                3.1   #11212      +/-   ##
============================================
- Coverage     69.45%   64.36%   -5.10%     
+ Complexity      128       14     -114     
============================================
  Files          1503     1422      -81     
  Lines         79374    59332   -20042     
  Branches      13986     8723    -5263     
============================================
- Hits          55132    38191   -16941     
+ Misses        19484    17089    -2395     
+ Partials       4758     4052     -706     

Impacted Files	Coverage Δ
.../registry/zookeeper/ZookeeperServiceDiscovery.java	65.55% <71.42%> (-11.44%)	⬇️
...luster/router/script/ScriptStateRouterFactory.java	0.00% <0.00%> (-100.00%)	⬇️
...he/dubbo/test/common/impl/GreetingServiceImpl.java	0.00% <0.00%> (-100.00%)	⬇️
...zookeeper/curator/CuratorZookeeperTransporter.java	0.00% <0.00%> (-100.00%)	⬇️
...nfigure/DubboRelaxedBinding2AutoConfiguration.java	0.00% <0.00%> (-100.00%)	⬇️
.../apache/dubbo/test/spring/SpringXmlConfigTest.java	0.00% <0.00%> (-96.16%)	⬇️
...egistrycenter/context/ZookeeperWindowsContext.java	0.00% <0.00%> (-81.82%)	⬇️
...istrycenter/processor/FindPidWindowsProcessor.java	5.40% <0.00%> (-81.09%)	⬇️
...pc/cluster/router/file/FileStateRouterFactory.java	0.00% <0.00%> (-80.96%)	⬇️
...ycenter/processor/KillProcessWindowsProcessor.java	10.00% <0.00%> (-80.00%)	⬇️
... and 512 more

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