Don't trust the response format from nacos server.

[horizonzy]

What is the purpose of the change

Don't trust the response format from nacos server.

[codecov-commenter]

Codecov Report

Merging #8230 (05d3a16) into 3.0 (e2d1ec0) will decrease coverage by 0.06%.
The diff coverage is 0.00%.

@@             Coverage Diff              @@
##                3.0    #8230      +/-   ##
============================================
- Coverage     63.58%   63.51%   -0.07%     
  Complexity      313      313              
============================================
  Files          1074     1074              
  Lines         45211    45216       +5     
  Branches       6807     6810       +3     
============================================
- Hits          28749    28721      -28     
- Misses        13272    13297      +25     
- Partials       3190     3198       +8     

Impacted Files	Coverage Δ
...enter/support/nacos/NacosDynamicConfiguration.java	22.66% <0.00%> (-0.79%)	⬇️
...ubbo/registry/client/AbstractServiceDiscovery.java	87.50% <0.00%> (-12.50%)	⬇️
...in/java/org/apache/dubbo/common/utils/JVMUtil.java	81.13% <0.00%> (-11.33%)	⬇️
.../apache/dubbo/remoting/transport/AbstractPeer.java	65.21% <0.00%> (-8.70%)	⬇️
...ng/transport/dispatcher/all/AllChannelHandler.java	89.65% <0.00%> (-6.90%)	⬇️
...dubbo/remoting/exchange/support/DefaultFuture.java	87.17% <0.00%> (-4.28%)	⬇️
...pache/dubbo/registry/support/AbstractRegistry.java	78.46% <0.00%> (-2.19%)	⬇️
.../src/main/java/org/apache/dubbo/rpc/RpcStatus.java	72.61% <0.00%> (-1.20%)	⬇️
...etadata/report/support/AbstractMetadataReport.java	60.76% <0.00%> (-0.96%)	⬇️
...apache/dubbo/common/extension/ExtensionLoader.java	80.67% <0.00%> (-0.43%)	⬇️
... and 2 more

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[xiaoheng1]

LGTM