[#9208] Backport: Change the agent's gRPC stream log level

[jaehong-kim]

#9208

[codecov]

Codecov Report

Merging #9209 (8ef294d) into 2.4.x (f29fba0) will increase coverage by 0.00%.
The diff coverage is 0.00%.

@@            Coverage Diff            @@
##              2.4.x    #9209   +/-   ##
=========================================
  Coverage     40.19%   40.20%           
- Complexity    11735    11738    +3     
=========================================
  Files          3295     3295           
  Lines         89559    89559           
  Branches      10032    10032           
=========================================
+ Hits          35997    36004    +7     
+ Misses        50492    50486    -6     
+ Partials       3070     3069    -1     

Impacted Files	Coverage Δ
...t/profiler/sender/grpc/ResponseStreamObserver.java	0.00% <0.00%> (ø)
...pc/server/LoggingServerMessageListenerFactory.java	80.95% <0.00%> (-9.53%)	⬇️
...rc/main/java/com/navercorp/pinpoint/test/Item.java	72.22% <0.00%> (-3.71%)	⬇️
...vercorp/pinpoint/web/vo/ApplicationAgentsList.java	69.73% <0.00%> (-2.64%)	⬇️
...pinpoint/profiler/monitor/DeadlockMonitorTask.java	20.93% <0.00%> (-1.17%)	⬇️
...ercorp/pinpoint/rpc/server/HealthCheckManager.java	60.25% <0.00%> (+1.28%)	⬆️
...orp/pinpoint/rpc/server/DefaultPinpointServer.java	81.89% <0.00%> (+2.05%)	⬆️
.../pinpoint/rpc/client/PinpointClientHandshaker.java	62.18% <0.00%> (+2.52%)	⬆️
...vercorp/pinpoint/rpc/packet/ClientClosePacket.java	53.33% <0.00%> (+6.66%)	⬆️
...p/pinpoint/rpc/client/WriteFailFutureListener.java	81.25% <0.00%> (+25.00%)	⬆️

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