Local references support mergeable

[CrazyHZM]

What is the purpose of the change

Solve #8777

Brief changelog

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.
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• 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.
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[codecov-commenter]

Codecov Report

Merging #9645 (0e41bcd) into 3.0 (dfe4fca) will increase coverage by 0.10%.
The diff coverage is 90.00%.

@@             Coverage Diff              @@
##                3.0    #9645      +/-   ##
============================================
+ Coverage     65.59%   65.70%   +0.10%     
+ Complexity      297      296       -1     
============================================
  Files          1191     1191              
  Lines         52068    52123      +55     
  Branches       7907     7920      +13     
============================================
+ Hits          34154    34246      +92     
+ Misses        14231    14182      -49     
- Partials       3683     3695      +12     

Impacted Files	Coverage Δ
...apache/dubbo/rpc/protocol/injvm/InjvmProtocol.java	83.63% <88.00%> (+2.38%)	⬆️
.../java/org/apache/dubbo/config/ReferenceConfig.java	81.96% <100.00%> (-0.22%)	⬇️
...ache/dubbo/registry/multiple/MultipleRegistry.java	60.75% <100.00%> (ø)
.../apache/dubbo/rpc/protocol/injvm/InjvmInvoker.java	74.73% <100.00%> (+2.57%)	⬆️
...che/dubbo/qos/probe/impl/DeployerStartupProbe.java	84.61% <0.00%> (-15.39%)	⬇️
...e/dubbo/qos/probe/impl/DeployerReadinessProbe.java	84.61% <0.00%> (-15.39%)	⬇️
.../remoting/transport/netty4/NettyServerHandler.java	58.13% <0.00%> (-9.31%)	⬇️
.../common/threadpool/serial/SerializingExecutor.java	70.37% <0.00%> (-7.41%)	⬇️
.../org/apache/dubbo/rpc/protocol/tri/WriteQueue.java	87.50% <0.00%> (-6.25%)	⬇️
...spring/context/DubboConfigApplicationListener.java	73.33% <0.00%> (-5.24%)	⬇️
... and 48 more

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[AlbumenJ]

这个PR会导致 ClusterFilter 在 Filter 之后工作。

Filter 的织入是在 org.apache.dubbo.rpc.cluster.filter.ProtocolFilterWrapper，而 PR 修改完 ClusterFilter 是在 org.apache.dubbo.rpc.protocol.injvm.InjvmProtocol#doCreateInvoker 才织入